15732312473 has 2 divisors, whose sum is σ = 15732312474. Its totient is φ = 15732312472.

The previous prime is 15732312469. The next prime is 15732312487. The reversal of 15732312473 is 37421323751.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8112244624 + 7620067849 = 90068^2 + 87293^2 .

It is a cyclic number.

It is not a de Polignac number, because 15732312473 - 2² = 15732312469 is a prime.

It is a super-2 number, since 2×15732312473² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (15732312403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7866156236 + 7866156237.

It is an arithmetic number, because the mean of its divisors is an integer number (7866156237).

Almost surely, 2^15732312473 is an apocalyptic number.

It is an amenable number.

15732312473 is a deficient number, since it is larger than the sum of its proper divisors (1).

15732312473 is an equidigital number, since it uses as much as digits as its factorization.

15732312473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105840, while the sum is 38.

The spelling of 15732312473 in words is "fifteen billion, seven hundred thirty-two million, three hundred twelve thousand, four hundred seventy-three".