20308992752 has 20 divisors (see below), whose sum is σ = 40412152296. Its totient is φ = 9880050240.

The previous prime is 20308992643. The next prime is 20308992787. The reversal of 20308992752 is 25729980302.

It is a junction number, because it is equal to n+sod(n) for n = 20308992697 and 20308992706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17152274 + ... + 17153457.

Almost surely, 2^20308992752 is an apocalyptic number.

It is an amenable number.

20308992752 is a deficient number, since it is larger than the sum of its proper divisors (20103159544).

20308992752 is a wasteful number, since it uses less digits than its factorization.

20308992752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34305776 (or 34305770 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 20308992752 in words is "twenty billion, three hundred eight million, nine hundred ninety-two thousand, seven hundred fifty-two".