20009681074708 has 36 divisors (see below), whose sum is σ = 38374594147008. Its totient is φ = 9123969472800.

The previous prime is 20009681074657. The next prime is 20009681074711. The reversal of 20009681074708 is 80747018690002.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178257868 + ... + 178370083.

It is an arithmetic number, because the mean of its divisors is an integer number (1065960948528).

Almost surely, 2^{20009681074708} is an apocalyptic number.

It is an amenable number.

20009681074708 is a deficient number, since it is larger than the sum of its proper divisors (18364913072300).

20009681074708 is a wasteful number, since it uses less digits than its factorization.

20009681074708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356628064 (or 356628049 counting only the distinct ones).

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 20009681074708 in words is "twenty trillion, nine billion, six hundred eighty-one million, seventy-four thousand, seven hundred eight".