74235072478 has 16 divisors (see below), whose sum is σ = 127298068704. Its totient is φ = 31805544960.

The previous prime is 74235072449. The next prime is 74235072503. The reversal of 74235072478 is 87427053247.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 741775 + ... + 835882.

It is an arithmetic number, because the mean of its divisors is an integer number (7956129294).

Almost surely, 2^74235072478 is an apocalyptic number.

74235072478 is a deficient number, since it is larger than the sum of its proper divisors (53062996226).

74235072478 is a wasteful number, since it uses less digits than its factorization.

74235072478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581027.

The product of its (nonzero) digits is 2634240, while the sum is 49.

The spelling of 74235072478 in words is "seventy-four billion, two hundred thirty-five million, seventy-two thousand, four hundred seventy-eight".