457721365000 has 40 divisors (see below), whose sum is σ = 1072441169910. Its totient is φ = 183088544000.

The previous prime is 457721364977. The next prime is 457721365007. The reversal of 457721365000 is 563127754.

It can be written as a sum of positive squares in 5 ways, for example, as 6874884 + 457714490116 = 2622^2 + 676546^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (457721365007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 45767137 + ... + 45777136.

Almost surely, 2^457721365000 is an apocalyptic number.

457721365000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

457721365000 is an abundant number, since it is smaller than the sum of its proper divisors (614719804910).

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

457721365000 is an equidigital number, since it uses as much as digits as its factorization.

457721365000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91544299 (or 91544280 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 457721365000 in words is "four hundred fifty-seven billion, seven hundred twenty-one million, three hundred sixty-five thousand".