12491470532 has 6 divisors (see below), whose sum is σ = 21860073438. Its totient is φ = 6245735264.

The previous prime is 12491470457. The next prime is 12491470571. The reversal of 12491470532 is 23507419421.

It can be written as a sum of positive squares in only one way, i.e., 12458131456 + 33339076 = 111616^2 + 5774^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561433813 + ... + 1561433820.

It is an arithmetic number, because the mean of its divisors is an integer number (3643345573).

Almost surely, 2^12491470532 is an apocalyptic number.

It is an amenable number.

12491470532 is a deficient number, since it is larger than the sum of its proper divisors (9368602906).

12491470532 is a wasteful number, since it uses less digits than its factorization.

12491470532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3122867637 (or 3122867635 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

Adding to 12491470532 its reverse (23507419421), we get a palindrome (35998889953).

The spelling of 12491470532 in words is "twelve billion, four hundred ninety-one million, four hundred seventy thousand, five hundred thirty-two".