20457039995 has 32 divisors (see below), whose sum is σ = 28761384960. Its totient is φ = 13675196160.

The previous prime is 20457039979. The next prime is 20457040033. The reversal of 20457039995 is 59993075402.

It is not a de Polignac number, because 20457039995 - 2⁴ = 20457039979 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2209586 + ... + 2218824.

It is an arithmetic number, because the mean of its divisors is an integer number (898793280).

Almost surely, 2^20457039995 is an apocalyptic number.

20457039995 is a deficient number, since it is larger than the sum of its proper divisors (8304344965).

20457039995 is a wasteful number, since it uses less digits than its factorization.

20457039995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10835.

The product of its (nonzero) digits is 3061800, while the sum is 53.

The spelling of 20457039995 in words is "twenty billion, four hundred fifty-seven million, thirty-nine thousand, nine hundred ninety-five".