315215478800 has 30 divisors (see below), whose sum is σ = 757305188778. Its totient is φ = 126086191360.

The previous prime is 315215478763. The next prime is 315215478827. The reversal of 315215478800 is 8874512513.

It can be written as a sum of positive squares in 3 ways, for example, as 4221880576 + 310993598224 = 64976^2 + 557668^2 .

It is a super-2 number, since 2×315215478800² (a number of 24 digits) contains 22 as substring.

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, 394018949 + ... + 394019748.

Almost surely, 2^315215478800 is an apocalyptic number.

It is an amenable number.

315215478800 is an abundant number, since it is smaller than the sum of its proper divisors (442089709978).

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

315215478800 is a wasteful number, since it uses less digits than its factorization.

315215478800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788038715 (or 788038704 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 315215478800 in words is "three hundred fifteen billion, two hundred fifteen million, four hundred seventy-eight thousand, eight hundred".