317745222740 has 24 divisors (see below), whose sum is σ = 727925419872. Its totient is φ = 115543717280.

The previous prime is 317745222727. The next prime is 317745222757. The reversal of 317745222740 is 47222547713.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 317745222691 and 317745222700.

It is a congruent number.

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, 722148014 + ... + 722148453.

It is an arithmetic number, because the mean of its divisors is an integer number (30330225828).

Almost surely, 2^317745222740 is an apocalyptic number.

It is an amenable number.

317745222740 is an abundant number, since it is smaller than the sum of its proper divisors (410180197132).

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

317745222740 is a wasteful number, since it uses less digits than its factorization.

317745222740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444296487 (or 1444296485 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 44.

The spelling of 317745222740 in words is "three hundred seventeen billion, seven hundred forty-five million, two hundred twenty-two thousand, seven hundred forty".