4791493278 has 120 divisors (see below), whose sum is σ = 12709736424. Its totient is φ = 1340206560.

The previous prime is 4791493247. The next prime is 4791493327. The reversal of 4791493278 is 8723941974.

4791493278 is a `hidden beast` number, since 47 + 91 + 493 + 27 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 245425 + ... + 264227.

Almost surely, 2^4791493278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4791493278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6354868212).

4791493278 is an abundant number, since it is smaller than the sum of its proper divisors (7918243146).

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

4791493278 is a wasteful number, since it uses less digits than its factorization.

4791493278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18852 (or 18832 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 4791493278 is about 69220.6131004342. The cubic root of 4791493278 is about 1685.8682347855.

The spelling of 4791493278 in words is "four billion, seven hundred ninety-one million, four hundred ninety-three thousand, two hundred seventy-eight".