74805612478 has 4 divisors (see below), whose sum is σ = 112208418720. Its totient is φ = 37402806238.

The previous prime is 74805612467. The next prime is 74805612487. The reversal of 74805612478 is 87421650847.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18701403118 + ... + 18701403121.

It is an arithmetic number, because the mean of its divisors is an integer number (28052104680).

Almost surely, 2^74805612478 is an apocalyptic number.

74805612478 is a deficient number, since it is larger than the sum of its proper divisors (37402806242).

74805612478 is a wasteful number, since it uses less digits than its factorization.

74805612478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37402806241.

The product of its (nonzero) digits is 3010560, while the sum is 52.

The spelling of 74805612478 in words is "seventy-four billion, eight hundred five million, six hundred twelve thousand, four hundred seventy-eight".