74481387667600 has 45 divisors (see below), whose sum is σ = 178941948556363. Its totient is φ = 29792486024960.

The previous prime is 74481387667579. The next prime is 74481387667639. The reversal of 74481387667600 is 676678318447.

The square root of 74481387667600 is 8630260.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 10484203636624 + 63997184030976 = 3237932^2 + 7999824^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 172389444 + ... + 172820956.

Almost surely, 2^{74481387667600} is an apocalyptic number.

74481387667600 is the 8630260-th square number.

It is an amenable number.

74481387667600 is an abundant number, since it is smaller than the sum of its proper divisors (104460560888763).

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

74481387667600 is an frugal number, since it uses more digits than its factorization.

74481387667600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863044 (or 431520 counting only the distinct ones).

The product of its (nonzero) digits is 227598336, while the sum is 67.

The spelling of 74481387667600 in words is "seventy-four trillion, four hundred eighty-one billion, three hundred eighty-seven million, six hundred sixty-seven thousand, six hundred".