15730274320 has 20 divisors (see below), whose sum is σ = 36572887980. Its totient is φ = 6292109696.

The previous prime is 15730274317. The next prime is 15730274323. The reversal of 15730274320 is 2347203751.

It is an interprime number because it is at equal distance from previous prime (15730274317) and next prime (15730274323).

It can be written as a sum of positive squares in 2 ways, for example, as 3074924304 + 12655350016 = 55452^2 + 112496^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (15730274323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98314135 + ... + 98314294.

It is an arithmetic number, because the mean of its divisors is an integer number (1828644399).

Almost surely, 2^15730274320 is an apocalyptic number.

15730274320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15730274320 is an abundant number, since it is smaller than the sum of its proper divisors (20842613660).

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

15730274320 is a wasteful number, since it uses less digits than its factorization.

15730274320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196628442 (or 196628436 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The spelling of 15730274320 in words is "fifteen billion, seven hundred thirty million, two hundred seventy-four thousand, three hundred twenty".