319653734408 has 32 divisors (see below), whose sum is σ = 610717786560. Its totient is φ = 156796236480.

The previous prime is 319653734357. The next prime is 319653734417. The reversal of 319653734408 is 804437356913.

It is a super-2 number, since 2×319653734408² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a self number, because there is not a number n which added to its sum of digits gives 319653734408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5332523 + ... + 5392133.

It is an arithmetic number, because the mean of its divisors is an integer number (19084930830).

Almost surely, 2^319653734408 is an apocalyptic number.

It is an amenable number.

319653734408 is a deficient number, since it is larger than the sum of its proper divisors (291064052152).

319653734408 is a wasteful number, since it uses less digits than its factorization.

319653734408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72317 (or 72313 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 319653734408 in words is "three hundred nineteen billion, six hundred fifty-three million, seven hundred thirty-four thousand, four hundred eight".