12403437764 has 6 divisors (see below), whose sum is σ = 21706016094. Its totient is φ = 6201718880.

The previous prime is 12403437749. The next prime is 12403437803. The reversal of 12403437764 is 46773430421.

It can be written as a sum of positive squares in only one way, i.e., 10484121664 + 1919316100 = 102392^2 + 43810^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1550429717 + ... + 1550429724.

It is an arithmetic number, because the mean of its divisors is an integer number (3617669349).

Almost surely, 2^12403437764 is an apocalyptic number.

It is an amenable number.

12403437764 is a deficient number, since it is larger than the sum of its proper divisors (9302578330).

12403437764 is a wasteful number, since it uses less digits than its factorization.

12403437764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3100859445 (or 3100859443 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 41.

The spelling of 12403437764 in words is "twelve billion, four hundred three million, four hundred thirty-seven thousand, seven hundred sixty-four".