78290484280 has 64 divisors (see below), whose sum is σ = 177106214880. Its totient is φ = 31147200000.

The previous prime is 78290484271. The next prime is 78290484373. The reversal of 78290484280 is 8248409287.

It is a happy number.

It is a super-2 number, since 2×78290484280² (a number of 23 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 15 ways as a sum of consecutive naturals, for example, 7595130 + ... + 7605430.

Almost surely, 2^78290484280 is an apocalyptic number.

It is an amenable number.

78290484280 is an abundant number, since it is smaller than the sum of its proper divisors (98815730600).

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

78290484280 is a wasteful number, since it uses less digits than its factorization.

78290484280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11320 (or 11316 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 52.

The spelling of 78290484280 in words is "seventy-eight billion, two hundred ninety million, four hundred eighty-four thousand, two hundred eighty".