315551252632242 has 48 divisors (see below), whose sum is σ = 700559413174656. Its totient is φ = 94674843252000.

The previous prime is 315551252632177. The next prime is 315551252632271. The reversal of 315551252632242 is 242236252155513.

It is a happy number.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 315551252632191 and 315551252632200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2151627658 + ... + 2151774309.

It is an arithmetic number, because the mean of its divisors is an integer number (14594987774472).

Almost surely, 2^{315551252632242} is an apocalyptic number.

315551252632242 is an abundant number, since it is smaller than the sum of its proper divisors (385008160542414).

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

315551252632242 is a wasteful number, since it uses less digits than its factorization.

315551252632242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4303402095 (or 4303402084 counting only the distinct ones).

The product of its digits is 4320000, while the sum is 48.

The spelling of 315551252632242 in words is "three hundred fifteen trillion, five hundred fifty-one billion, two hundred fifty-two million, six hundred thirty-two thousand, two hundred forty-two".