78414590824 has 16 divisors (see below), whose sum is σ = 147199735620. Its totient is φ = 39161328000.

The previous prime is 78414590789. The next prime is 78414590831. The reversal of 78414590824 is 42809541487.

It can be written as a sum of positive squares in 2 ways, for example, as 66006858724 + 12407732100 = 256918^2 + 111390^2 .

It is a super-2 number, since 2×78414590824² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5738677 + ... + 5752324.

Almost surely, 2^78414590824 is an apocalyptic number.

It is an amenable number.

78414590824 is a deficient number, since it is larger than the sum of its proper divisors (68785144796).

78414590824 is a wasteful number, since it uses less digits than its factorization.

78414590824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11491860 (or 11491856 counting only the distinct ones).

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

The spelling of 78414590824 in words is "seventy-eight billion, four hundred fourteen million, five hundred ninety thousand, eight hundred twenty-four".