31725473000 has 64 divisors (see below), whose sum is σ = 79948224720. Its totient is φ = 11714016000.

The previous prime is 31725472991. The next prime is 31725473009. The reversal of 31725473000 is 37452713.

It is an interprime number because it is at equal distance from previous prime (31725472991) and next prime (31725473009).

It can be written as a sum of positive squares in 8 ways, for example, as 518837284 + 31206635716 = 22778^2 + 176654^2 .

It is not an unprimeable number, because it can be changed into a prime (31725473009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1207211 + ... + 1233210.

Almost surely, 2^31725473000 is an apocalyptic number.

It is an amenable number.

31725473000 is an abundant number, since it is smaller than the sum of its proper divisors (48222751720).

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

31725473000 is a wasteful number, since it uses less digits than its factorization.

31725473000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440455 (or 2440441 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 32.

The spelling of 31725473000 in words is "thirty-one billion, seven hundred twenty-five million, four hundred seventy-three thousand".