20296618786 has 8 divisors (see below), whose sum is σ = 32047292880. Its totient is φ = 9614187828.

The previous prime is 20296618777. The next prime is 20296618787. The reversal of 20296618786 is 68781669202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20296618786² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20296618787) 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 3 ways as a sum of consecutive naturals, for example, 267060736 + ... + 267060811.

It is an arithmetic number, because the mean of its divisors is an integer number (4005911610).

Almost surely, 2^20296618786 is an apocalyptic number.

20296618786 is a deficient number, since it is larger than the sum of its proper divisors (11750674094).

20296618786 is a wasteful number, since it uses less digits than its factorization.

20296618786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534121568.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 20296618786 in words is "twenty billion, two hundred ninety-six million, six hundred eighteen thousand, seven hundred eighty-six".