78418582372 has 48 divisors (see below), whose sum is σ = 151692710400. Its totient is φ = 35244899712.

The previous prime is 78418582367. The next prime is 78418582373. The reversal of 78418582372 is 27328581487.

It is a super-2 number, since 2×78418582372² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78418582373) 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, 405738 + ... + 566974.

It is an arithmetic number, because the mean of its divisors is an integer number (3160264800).

Almost surely, 2^78418582372 is an apocalyptic number.

It is an amenable number.

78418582372 is a deficient number, since it is larger than the sum of its proper divisors (73274128028).

78418582372 is a wasteful number, since it uses less digits than its factorization.

78418582372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161500 (or 161498 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 55.

The spelling of 78418582372 in words is "seventy-eight billion, four hundred eighteen million, five hundred eighty-two thousand, three hundred seventy-two".