20672378524 has 36 divisors (see below), whose sum is σ = 42555935520. Its totient is φ = 8760037440.

The previous prime is 20672378509. The next prime is 20672378533. The reversal of 20672378524 is 42587327602.

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 11 ways as a sum of consecutive naturals, for example, 575092 + ... + 609979.

It is an arithmetic number, because the mean of its divisors is an integer number (1182109320).

Almost surely, 2^20672378524 is an apocalyptic number.

It is an amenable number.

20672378524 is an abundant number, since it is smaller than the sum of its proper divisors (21883556996).

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

20672378524 is a wasteful number, since it uses less digits than its factorization.

20672378524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185178 (or 1185169 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 20672378524 in words is "twenty billion, six hundred seventy-two million, three hundred seventy-eight thousand, five hundred twenty-four".