20297869704 has 192 divisors, whose sum is σ = 65560535040. Its totient is φ = 5763182400.

The previous prime is 20297869703. The next prime is 20297869751. The reversal of 20297869704 is 40796879202.

It is a super-2 number, since 2×20297869704² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (20297869703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2213529 + ... + 2222679.

It is an arithmetic number, because the mean of its divisors is an integer number (341461120).

Almost surely, 2^20297869704 is an apocalyptic number.

20297869704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20297869704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32780267520).

20297869704 is an abundant number, since it is smaller than the sum of its proper divisors (45262665336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20297869704 is a wasteful number, since it uses less digits than its factorization.

20297869704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9342 (or 9326 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 54.

The spelling of 20297869704 in words is "twenty billion, two hundred ninety-seven million, eight hundred sixty-nine thousand, seven hundred four".