78310586220280 has 16 divisors (see below), whose sum is σ = 176198818995720. Its totient is φ = 31324234488096.

The previous prime is 78310586220271. The next prime is 78310586220301. The reversal of 78310586220280 is 8202268501387.

It is a super-2 number, since 2×78310586220280² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 978882327714 + ... + 978882327793.

Almost surely, 2^{78310586220280} is an apocalyptic number.

It is an amenable number.

78310586220280 is an abundant number, since it is smaller than the sum of its proper divisors (97888232775440).

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

78310586220280 is a wasteful number, since it uses less digits than its factorization.

78310586220280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957764655518 (or 1957764655514 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 78310586220280 in words is "seventy-eight trillion, three hundred ten billion, five hundred eighty-six million, two hundred twenty thousand, two hundred eighty".