78937327368240 has 160 divisors (see below), whose sum is σ = 267009300239616. Its totient is φ = 19132191943680.

The previous prime is 78937327368191. The next prime is 78937327368269. The reversal of 78937327368240 is 4286372373987.

It is a super-2 number, since 2×78937327368240² (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9017559 + ... + 15465801.

Almost surely, 2^{78937327368240} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78937327368240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133504650119808).

78937327368240 is an abundant number, since it is smaller than the sum of its proper divisors (188071972871376).

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

78937327368240 is a wasteful number, since it uses less digits than its factorization.

78937327368240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6452907 (or 6452901 counting only the distinct ones).

The product of its (nonzero) digits is 512096256, while the sum is 69.

The spelling of 78937327368240 in words is "seventy-eight trillion, nine hundred thirty-seven billion, three hundred twenty-seven million, three hundred sixty-eight thousand, two hundred forty".