78107720010 has 16 divisors (see below), whose sum is σ = 187458528096. Its totient is φ = 20828725328.

The previous prime is 78107719997. The next prime is 78107720023. The reversal of 78107720010 is 1002770187.

It is an interprime number because it is at equal distance from previous prime (78107719997) and next prime (78107720023).

It is a super-2 number, since 2×78107720010² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1301795304 + ... + 1301795363.

It is an arithmetic number, because the mean of its divisors is an integer number (11716158006).

Almost surely, 2^78107720010 is an apocalyptic number.

78107720010 is an abundant number, since it is smaller than the sum of its proper divisors (109350808086).

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

78107720010 is a wasteful number, since it uses less digits than its factorization.

78107720010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2603590677.

The product of its (nonzero) digits is 5488, while the sum is 33.

The spelling of 78107720010 in words is "seventy-eight billion, one hundred seven million, seven hundred twenty thousand, ten".