20347923996 has 36 divisors (see below), whose sum is σ = 51462574800. Its totient is φ = 6779009088.

The previous prime is 20347923983. The next prime is 20347924067. The reversal of 20347923996 is 69932974302.

20347923996 is a `hidden beast` number, since 203 + 47 + 9 + 2 + 399 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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, 82761 + ... + 218048.

Almost surely, 2^20347923996 is an apocalyptic number.

It is an amenable number.

20347923996 is an abundant number, since it is smaller than the sum of its proper divisors (31114650804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20347923996 is a wasteful number, since it uses less digits than its factorization.

20347923996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302698 (or 302693 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 54.

It can be divided in two parts, 203479 and 23996, that added together give a triangular number (227475 = T₆₇₄).

The spelling of 20347923996 in words is "twenty billion, three hundred forty-seven million, nine hundred twenty-three thousand, nine hundred ninety-six".