20939962036 has 48 divisors (see below), whose sum is σ = 44592710400. Its totient is φ = 8584070880.

The previous prime is 20939962027. The next prime is 20939962063. The reversal of 20939962036 is 63026993902.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300235 + ... + 363346.

It is an arithmetic number, because the mean of its divisors is an integer number (929014800).

Almost surely, 2^20939962036 is an apocalyptic number.

It is an amenable number.

20939962036 is an abundant number, since it is smaller than the sum of its proper divisors (23652748364).

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

20939962036 is a wasteful number, since it uses less digits than its factorization.

20939962036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663629 (or 663613 counting only the distinct ones).

The product of its (nonzero) digits is 944784, while the sum is 49.

The spelling of 20939962036 in words is "twenty billion, nine hundred thirty-nine million, nine hundred sixty-two thousand, thirty-six".