78300351684 has 81 divisors (see below), whose sum is σ = 199901823303. Its totient is φ = 25842121344.

The previous prime is 78300351671. The next prime is 78300351709. The reversal of 78300351684 is 48615300387.

The square root of 78300351684 is 279822.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 64734624900 + 13565726784 = 254430^2 + 116472^2 .

It is a super-2 number, since 2×78300351684² (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 26 ways as a sum of consecutive naturals, for example, 250160712 + ... + 250161024.

Almost surely, 2^78300351684 is an apocalyptic number.

78300351684 is the 279822-nd square number.

It is an amenable number.

78300351684 is an abundant number, since it is smaller than the sum of its proper divisors (121601471619).

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

78300351684 is a wasteful number, since it uses less digits than its factorization.

78300351684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 78300351684 in words is "seventy-eight billion, three hundred million, three hundred fifty-one thousand, six hundred eighty-four".