78019620404 has 24 divisors (see below), whose sum is σ = 149159084256. Its totient is φ = 35412860000.

The previous prime is 78019620401. The next prime is 78019620443. The reversal of 78019620404 is 40402691087.

It is a super-2 number, since 2×78019620404² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78019620401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1233902 + ... + 1295589.

It is an arithmetic number, because the mean of its divisors is an integer number (6214961844).

Almost surely, 2^78019620404 is an apocalyptic number.

It is an amenable number.

78019620404 is a deficient number, since it is larger than the sum of its proper divisors (71139463852).

78019620404 is a wasteful number, since it uses less digits than its factorization.

78019620404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530207 (or 2530205 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 78019620404 in words is "seventy-eight billion, nineteen million, six hundred twenty thousand, four hundred four".