39970479318 has 64 divisors (see below), whose sum is σ = 100634406912. Its totient is φ = 10281134880.

The previous prime is 39970479317. The next prime is 39970479337. The reversal of 39970479318 is 81397407993.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39970479313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 372396 + ... + 467567.

It is an arithmetic number, because the mean of its divisors is an integer number (1572412608).

Almost surely, 2^39970479318 is an apocalyptic number.

39970479318 is an abundant number, since it is smaller than the sum of its proper divisors (60663927594).

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

39970479318 is a wasteful number, since it uses less digits than its factorization.

39970479318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840089.

The product of its (nonzero) digits is 10287648, while the sum is 60.

The spelling of 39970479318 in words is "thirty-nine billion, nine hundred seventy million, four hundred seventy-nine thousand, three hundred eighteen".