4979731478 has 4 divisors (see below), whose sum is σ = 7469597220. Its totient is φ = 2489865738.

The previous prime is 4979731439. The next prime is 4979731481. The reversal of 4979731478 is 8741379794.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1244932868 + ... + 1244932871.

It is an arithmetic number, because the mean of its divisors is an integer number (1867399305).

Almost surely, 2^4979731478 is an apocalyptic number.

4979731478 is a deficient number, since it is larger than the sum of its proper divisors (2489865742).

4979731478 is a wasteful number, since it uses less digits than its factorization.

4979731478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2489865741.

The product of its digits is 10668672, while the sum is 59.

The square root of 4979731478 is about 70567.2124856863. The cubic root of 4979731478 is about 1707.6622384853.

The spelling of 4979731478 in words is "four billion, nine hundred seventy-nine million, seven hundred thirty-one thousand, four hundred seventy-eight".