20494745692 has 12 divisors (see below), whose sum is σ = 37975558320. Its totient is φ = 9644586176.

The previous prime is 20494745683. The next prime is 20494745707. The reversal of 20494745692 is 29654749402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150696592 + ... + 150696727.

It is an arithmetic number, because the mean of its divisors is an integer number (3164629860).

Almost surely, 2^20494745692 is an apocalyptic number.

It is an amenable number.

20494745692 is a deficient number, since it is larger than the sum of its proper divisors (17480812628).

20494745692 is a wasteful number, since it uses less digits than its factorization.

20494745692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301393340 (or 301393338 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 20494745692 in words is "twenty billion, four hundred ninety-four million, seven hundred forty-five thousand, six hundred ninety-two".