20872401607 has 12 divisors (see below), whose sum is σ = 22230908040. Its totient is φ = 19592405712.

The previous prime is 20872401551. The next prime is 20872401611. The reversal of 20872401607 is 70610427802.

It is a de Polignac number, because none of the positive numbers 2^k-20872401607 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 (20872401637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225873 + ... + 304570.

It is an arithmetic number, because the mean of its divisors is an integer number (1852575670).

Almost surely, 2^20872401607 is an apocalyptic number.

20872401607 is a deficient number, since it is larger than the sum of its proper divisors (1358506433).

20872401607 is a wasteful number, since it uses less digits than its factorization.

20872401607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530590 (or 530571 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The spelling of 20872401607 in words is "twenty billion, eight hundred seventy-two million, four hundred one thousand, six hundred seven".