20374651813 has 8 divisors (see below), whose sum is σ = 20416032000. Its totient is φ = 20333315568.

The previous prime is 20374651753. The next prime is 20374651837. The reversal of 20374651813 is 31815647302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20374651813 - 2⁹ = 20374651301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20374651883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1011363 + ... + 1031311.

It is an arithmetic number, because the mean of its divisors is an integer number (2552004000).

Almost surely, 2^20374651813 is an apocalyptic number.

It is an amenable number.

20374651813 is a deficient number, since it is larger than the sum of its proper divisors (41380187).

20374651813 is a wasteful number, since it uses less digits than its factorization.

20374651813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21971.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 20374651813 in words is "twenty billion, three hundred seventy-four million, six hundred fifty-one thousand, eight hundred thirteen".