15321463532 has 12 divisors (see below), whose sum is σ = 26822334000. Its totient is φ = 7657939536.

The previous prime is 15321463511. The next prime is 15321463543. The reversal of 15321463532 is 23536412351.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 15321463492 and 15321463501.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 685688 + ... + 707679.

It is an arithmetic number, because the mean of its divisors is an integer number (2235194500).

Almost surely, 2^15321463532 is an apocalyptic number.

It is an amenable number.

15321463532 is a deficient number, since it is larger than the sum of its proper divisors (11500870468).

15321463532 is a wasteful number, since it uses less digits than its factorization.

15321463532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396120 (or 1396118 counting only the distinct ones).

The product of its digits is 64800, while the sum is 35.

Adding to 15321463532 its reverse (23536412351), we get a palindrome (38857875883).

The spelling of 15321463532 in words is "fifteen billion, three hundred twenty-one million, four hundred sixty-three thousand, five hundred thirty-two".