1396866732624 has 120 divisors (see below), whose sum is σ = 4422627579552. Its totient is φ = 423292936320.

The previous prime is 1396866732563. The next prime is 1396866732629. The reversal of 1396866732624 is 4262376686931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1396866732629) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16287979 + ... + 16373514.

Almost surely, 2^{1396866732624} is an apocalyptic number.

It is an amenable number.

1396866732624 is an abundant number, since it is smaller than the sum of its proper divisors (3025760846928).

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

1396866732624 is a wasteful number, since it uses less digits than its factorization.

1396866732624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32661527 (or 32661509 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 63.

The spelling of 1396866732624 in words is "one trillion, three hundred ninety-six billion, eight hundred sixty-six million, seven hundred thirty-two thousand, six hundred twenty-four".