39812918475 has 48 divisors (see below), whose sum is σ = 73478047104. Its totient is φ = 18854304000.

The previous prime is 39812918461. The next prime is 39812918479. The reversal of 39812918475 is 57481921893.

It is not a de Polignac number, because 39812918475 - 2⁸ = 39812918219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39812918479) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 525666 + ... + 596615.

It is an arithmetic number, because the mean of its divisors is an integer number (1530792648).

Almost surely, 2^39812918475 is an apocalyptic number.

39812918475 is a deficient number, since it is larger than the sum of its proper divisors (33665128629).

39812918475 is a wasteful number, since it uses less digits than its factorization.

39812918475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122348 (or 1122343 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 57.

The spelling of 39812918475 in words is "thirty-nine billion, eight hundred twelve million, nine hundred eighteen thousand, four hundred seventy-five".