78368185240 has 32 divisors (see below), whose sum is σ = 176442390000. Its totient is φ = 31327012224.

The previous prime is 78368185229. The next prime is 78368185253. The reversal of 78368185240 is 4258186387.

It is a super-2 number, since 2×78368185240² (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 7 ways as a sum of consecutive naturals, for example, 570450 + ... + 694369.

Almost surely, 2^78368185240 is an apocalyptic number.

It is an amenable number.

78368185240 is an abundant number, since it is smaller than the sum of its proper divisors (98074204760).

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

78368185240 is a wasteful number, since it uses less digits than its factorization.

78368185240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266379 (or 1266375 counting only the distinct ones).

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

The spelling of 78368185240 in words is "seventy-eight billion, three hundred sixty-eight million, one hundred eighty-five thousand, two hundred forty".