315136447454450 has 12 divisors (see below), whose sum is σ = 586153792265370. Its totient is φ = 126054578981760.

The previous prime is 315136447454443. The next prime is 315136447454519. The reversal of 315136447454450 is 54454744631513.

It can be written as a sum of positive squares in 3 ways, for example, as 133188748992049 + 181947698462401 = 11540743^2 + 13488799^2 .

It is a super-2 number, since 2×315136447454450² (a number of 30 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3151364474495 + ... + 3151364474594.

Almost surely, 2^{315136447454450} is an apocalyptic number.

315136447454450 is a deficient number, since it is larger than the sum of its proper divisors (271017344810920).

315136447454450 is a wasteful number, since it uses less digits than its factorization.

315136447454450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6302728949101 (or 6302728949096 counting only the distinct ones).

The product of its (nonzero) digits is 48384000, while the sum is 56.

The spelling of 315136447454450 in words is "three hundred fifteen trillion, one hundred thirty-six billion, four hundred forty-seven million, four hundred fifty-four thousand, four hundred fifty".