20597679502 has 16 divisors (see below), whose sum is σ = 33174725472. Its totient is φ = 9556503040.

The previous prime is 20597679491. The next prime is 20597679523.

20597679502 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×20597679502² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20597679502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4263883 + ... + 4268710.

It is an arithmetic number, because the mean of its divisors is an integer number (2073420342).

Almost surely, 2^20597679502 is an apocalyptic number.

20597679502 is a deficient number, since it is larger than the sum of its proper divisors (12577045970).

20597679502 is a wasteful number, since it uses less digits than its factorization.

20597679502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8532683.

The product of its (nonzero) digits is 2381400, while the sum is 52.

The spelling of 20597679502 in words is "twenty billion, five hundred ninety-seven million, six hundred seventy-nine thousand, five hundred two".