39970273907 has 4 divisors (see below), whose sum is σ = 39970695240. Its totient is φ = 39969852576.

The previous prime is 39970273897. The next prime is 39970273921. The reversal of 39970273907 is 70937207993.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 70937207993 = 25997 ⋅2728669.

It is a cyclic number.

It is not a de Polignac number, because 39970273907 - 2¹⁰ = 39970272883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39970273307) 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, 5723 + ... + 282795.

It is an arithmetic number, because the mean of its divisors is an integer number (9992673810).

Almost surely, 2^39970273907 is an apocalyptic number.

39970273907 is a deficient number, since it is larger than the sum of its proper divisors (421333).

39970273907 is a wasteful number, since it uses less digits than its factorization.

39970273907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421332.

The product of its (nonzero) digits is 4500846, while the sum is 56.

The spelling of 39970273907 in words is "thirty-nine billion, nine hundred seventy million, two hundred seventy-three thousand, nine hundred seven".