620872888279 has 6 divisors (see below), whose sum is σ = 722239890504. Its totient is φ = 532176761340.

The previous prime is 620872888261. The next prime is 620872888373. The reversal of 620872888279 is 972888278026.

It is a de Polignac number, because none of the positive numbers 2^k-620872888279 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 (620872888249) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6335437587 + ... + 6335437684.

It is an arithmetic number, because the mean of its divisors is an integer number (120373315084).

Almost surely, 2^620872888279 is an apocalyptic number.

620872888279 is a deficient number, since it is larger than the sum of its proper divisors (101367002225).

620872888279 is a wasteful number, since it uses less digits than its factorization.

620872888279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12670875285 (or 12670875278 counting only the distinct ones).

The product of its (nonzero) digits is 86704128, while the sum is 67.

The spelling of 620872888279 in words is "six hundred twenty billion, eight hundred seventy-two million, eight hundred eighty-eight thousand, two hundred seventy-nine".