20479097612 has 24 divisors (see below), whose sum is σ = 37854845952. Its totient is φ = 9678790800.

The previous prime is 20479097593. The next prime is 20479097623. The reversal of 20479097612 is 21679097402.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

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, 1915064 + ... + 1925727.

It is an arithmetic number, because the mean of its divisors is an integer number (1577285248).

Almost surely, 2^20479097612 is an apocalyptic number.

It is an amenable number.

20479097612 is a deficient number, since it is larger than the sum of its proper divisors (17375748340).

20479097612 is a wasteful number, since it uses less digits than its factorization.

20479097612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3840869 (or 3840867 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 47.

The spelling of 20479097612 in words is "twenty billion, four hundred seventy-nine million, ninety-seven thousand, six hundred twelve".