3520279979688 has 32 divisors (see below), whose sum is σ = 8912101219200. Its totient is φ = 1158573157248.

The previous prime is 3520279979687. The next prime is 3520279979717. The reversal of 3520279979688 is 8869799720253.

It is a super-2 number, since 2×3520279979688² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3520279979687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 928341981 + ... + 928345772.

It is an arithmetic number, because the mean of its divisors is an integer number (278503163100).

Almost surely, 2^{3520279979688} is an apocalyptic number.

It is an amenable number.

3520279979688 is an abundant number, since it is smaller than the sum of its proper divisors (5391821239512).

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

3520279979688 is a wasteful number, since it uses less digits than its factorization.

3520279979688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856687841 (or 1856687837 counting only the distinct ones).

The product of its (nonzero) digits is 823011840, while the sum is 75.

The spelling of 3520279979688 in words is "three trillion, five hundred twenty billion, two hundred seventy-nine million, nine hundred seventy-nine thousand, six hundred eighty-eight".