39424279491 has 6 divisors (see below), whose sum is σ = 56946181500. Its totient is φ = 26282852988.

The previous prime is 39424279459. The next prime is 39424279523. The reversal of 39424279491 is 19497242493.

39424279491 is a `hidden beast` number, since 3 + 9 + 42 + 42 + 79 + 491 = 666.

It is an interprime number because it is at equal distance from previous prime (39424279459) and next prime (39424279523).

It is not a de Polignac number, because 39424279491 - 2⁵ = 39424279459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39424272491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2190237741 + ... + 2190237758.

It is an arithmetic number, because the mean of its divisors is an integer number (9491030250).

Almost surely, 2^39424279491 is an apocalyptic number.

39424279491 is a deficient number, since it is larger than the sum of its proper divisors (17521902009).

39424279491 is a wasteful number, since it uses less digits than its factorization.

39424279491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4380475505 (or 4380475502 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The spelling of 39424279491 in words is "thirty-nine billion, four hundred twenty-four million, two hundred seventy-nine thousand, four hundred ninety-one".