7870864940 has 12 divisors (see below), whose sum is σ = 16528816416. Its totient is φ = 3148345968.

The previous prime is 7870864927. The next prime is 7870864951. The reversal of 7870864940 is 494680787.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196771604 + ... + 196771643.

It is an arithmetic number, because the mean of its divisors is an integer number (1377401368).

Almost surely, 2^7870864940 is an apocalyptic number.

It is an amenable number.

7870864940 is an abundant number, since it is smaller than the sum of its proper divisors (8657951476).

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

7870864940 is a wasteful number, since it uses less digits than its factorization.

7870864940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393543256 (or 393543254 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 53.

The square root of 7870864940 is about 88717.8952635825. The cubic root of 7870864940 is about 1989.1803177894.

The spelling of 7870864940 in words is "seven billion, eight hundred seventy million, eight hundred sixty-four thousand, nine hundred forty".