78504131184404 has 48 divisors (see below), whose sum is σ = 138247781253120. Its totient is φ = 39005088323040.

The previous prime is 78504131184403. The next prime is 78504131184419. The reversal of 78504131184404 is 40448113140587.

It is a super-2 number, since 2×78504131184404² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78504131184403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7724498627 + ... + 7724508789.

It is an arithmetic number, because the mean of its divisors is an integer number (2880162109440).

Almost surely, 2^{78504131184404} is an apocalyptic number.

It is an amenable number.

78504131184404 is a deficient number, since it is larger than the sum of its proper divisors (59743650068716).

78504131184404 is a wasteful number, since it uses less digits than its factorization.

78504131184404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16940 (or 16938 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 78504131184404 in words is "seventy-eight trillion, five hundred four billion, one hundred thirty-one million, one hundred eighty-four thousand, four hundred four".