39970973923 has 8 divisors (see below), whose sum is σ = 40951070496. Its totient is φ = 38991124800.

The previous prime is 39970973909. The next prime is 39970973927. The reversal of 39970973923 is 32937907993.

39970973923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 39970973923 - 2¹³ = 39970965731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39970973927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289290 + ... + 404512.

It is an arithmetic number, because the mean of its divisors is an integer number (5118883812).

Almost surely, 2^39970973923 is an apocalyptic number.

39970973923 is a deficient number, since it is larger than the sum of its proper divisors (980096573).

39970973923 is a wasteful number, since it uses less digits than its factorization.

39970973923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123725.

The product of its (nonzero) digits is 17360406, while the sum is 61.

The spelling of 39970973923 in words is "thirty-nine billion, nine hundred seventy million, nine hundred seventy-three thousand, nine hundred twenty-three".