20868432762 has 16 divisors (see below), whose sum is σ = 41779596672. Its totient is φ = 6949022400.

The previous prime is 20868432733. The next prime is 20868432763. The reversal of 20868432762 is 26723486802.

It is a super-2 number, since 2×20868432762² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20868432763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1774114 + ... + 1785837.

It is an arithmetic number, because the mean of its divisors is an integer number (2611224792).

Almost surely, 2^20868432762 is an apocalyptic number.

20868432762 is an abundant number, since it is smaller than the sum of its proper divisors (20911163910).

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

20868432762 is a wasteful number, since it uses less digits than its factorization.

20868432762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3560933.

The product of its (nonzero) digits is 1548288, while the sum is 48.

The spelling of 20868432762 in words is "twenty billion, eight hundred sixty-eight million, four hundred thirty-two thousand, seven hundred sixty-two".