20535044937 has 16 divisors (see below), whose sum is σ = 29899964160. Its totient is φ = 12432645200.

The previous prime is 20535044921. The next prime is 20535044951. The reversal of 20535044937 is 73944053502.

It is a cyclic number.

It is not a de Polignac number, because 20535044937 - 2⁴ = 20535044921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20535044737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 288387 + ... + 352472.

It is an arithmetic number, because the mean of its divisors is an integer number (1868747760).

Almost surely, 2^20535044937 is an apocalyptic number.

It is an amenable number.

20535044937 is a deficient number, since it is larger than the sum of its proper divisors (9364919223).

20535044937 is a wasteful number, since it uses less digits than its factorization.

20535044937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641844.

The product of its (nonzero) digits is 453600, while the sum is 42.

The spelling of 20535044937 in words is "twenty billion, five hundred thirty-five million, forty-four thousand, nine hundred thirty-seven".