4591974378 has 64 divisors (see below), whose sum is σ = 9882207360. Its totient is φ = 1418047488.

The previous prime is 4591974349. The next prime is 4591974383. The reversal of 4591974378 is 8734791954.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2131750 + ... + 2133902.

It is an arithmetic number, because the mean of its divisors is an integer number (154409490).

Almost surely, 2^4591974378 is an apocalyptic number.

4591974378 is an abundant number, since it is smaller than the sum of its proper divisors (5290232982).

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

4591974378 is a wasteful number, since it uses less digits than its factorization.

4591974378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583.

The product of its digits is 7620480, while the sum is 57.

The square root of 4591974378 is about 67764.1083317710. The cubic root of 4591974378 is about 1662.1357300010.

The spelling of 4591974378 in words is "four billion, five hundred ninety-one million, nine hundred seventy-four thousand, three hundred seventy-eight".