39734479874 has 8 divisors (see below), whose sum is σ = 59661503868. Its totient is φ = 19847311920.

The previous prime is 39734479871. The next prime is 39734479877. The reversal of 39734479874 is 47897443793.

It is an interprime number because it is at equal distance from previous prime (39734479871) and next prime (39734479877).

It can be written as a sum of positive squares in 2 ways, for example, as 39683428849 + 51051025 = 199207^2 + 7145^2 .

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

It is a super-2 number, since 2×39734479874² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 39734479874.

It is not an unprimeable number, because it can be changed into a prime (39734479871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9961517 + ... + 9965504.

Almost surely, 2^39734479874 is an apocalyptic number.

39734479874 is a deficient number, since it is larger than the sum of its proper divisors (19927023994).

39734479874 is a wasteful number, since it uses less digits than its factorization.

39734479874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19928020.

The product of its digits is 128024064, while the sum is 65.

The spelling of 39734479874 in words is "thirty-nine billion, seven hundred thirty-four million, four hundred seventy-nine thousand, eight hundred seventy-four".