39245315478 has 16 divisors (see below), whose sum is σ = 78530316480. Its totient is φ = 13075157576.

The previous prime is 39245315477. The next prime is 39245315531. The reversal of 39245315478 is 87451354293.

It is a self number, because there is not a number n which added to its sum of digits gives 39245315478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39245315477) 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, 1640700 + ... + 1664447.

It is an arithmetic number, because the mean of its divisors is an integer number (4908144780).

Almost surely, 2^39245315478 is an apocalyptic number.

39245315478 is an abundant number, since it is smaller than the sum of its proper divisors (39285001002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39245315478 is a wasteful number, since it uses less digits than its factorization.

39245315478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3307131.

The product of its digits is 3628800, while the sum is 51.

The spelling of 39245315478 in words is "thirty-nine billion, two hundred forty-five million, three hundred fifteen thousand, four hundred seventy-eight".