39682945971 has 24 divisors (see below), whose sum is σ = 61270818336. Its totient is φ = 24687864960.

The previous prime is 39682945949. The next prime is 39682945993. The reversal of 39682945971 is 17954928693.

39682945971 is a `hidden beast` number, since 3 + 96 + 8 + 29 + 459 + 71 = 666.

It is an interprime number because it is at equal distance from previous prime (39682945949) and next prime (39682945993).

It is not a de Polignac number, because 39682945971 - 2³³ = 31093011379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39682945899 and 39682945908.

It is not an unprimeable number, because it can be changed into a prime (39682945271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2329380 + ... + 2346353.

It is an arithmetic number, because the mean of its divisors is an integer number (2552950764).

Almost surely, 2^39682945971 is an apocalyptic number.

39682945971 is a deficient number, since it is larger than the sum of its proper divisors (21587872365).

39682945971 is a wasteful number, since it uses less digits than its factorization.

39682945971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4675803 (or 4675800 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 63.

The spelling of 39682945971 in words is "thirty-nine billion, six hundred eighty-two million, nine hundred forty-five thousand, nine hundred seventy-one".