7312491700 has 18 divisors (see below), whose sum is σ = 15868107206. Its totient is φ = 2924996640.

The previous prime is 7312491691. The next prime is 7312491701. The reversal of 7312491700 is 71942137.

It can be written as a sum of positive squares in 3 ways, for example, as 701826064 + 6610665636 = 26492^2 + 81306^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7312491701) 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 5 ways as a sum of consecutive naturals, for example, 36562359 + ... + 36562558.

Almost surely, 2^7312491700 is an apocalyptic number.

It is an amenable number.

7312491700 is an abundant number, since it is smaller than the sum of its proper divisors (8555615506).

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

7312491700 is a wasteful number, since it uses less digits than its factorization.

7312491700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73124931 (or 73124924 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 34.

The square root of 7312491700 is about 85513.1083518778. The cubic root of 7312491700 is about 1940.9832847972.

The spelling of 7312491700 in words is "seven billion, three hundred twelve million, four hundred ninety-one thousand, seven hundred".