39976579493 has 8 divisors (see below), whose sum is σ = 40368926208. Its totient is φ = 39584314224.

The previous prime is 39976579469. The next prime is 39976579523. The reversal of 39976579493 is 39497567993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39976579493 - 2¹⁰ = 39976578469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39976579793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1570796 + ... + 1596042.

It is an arithmetic number, because the mean of its divisors is an integer number (5046115776).

Almost surely, 2^39976579493 is an apocalyptic number.

It is an amenable number.

39976579493 is a deficient number, since it is larger than the sum of its proper divisors (392346715).

39976579493 is a wasteful number, since it uses less digits than its factorization.

39976579493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40723.

The product of its digits is 347208120, while the sum is 71.

The spelling of 39976579493 in words is "thirty-nine billion, nine hundred seventy-six million, five hundred seventy-nine thousand, four hundred ninety-three".