1397606987112 has 64 divisors (see below), whose sum is σ = 3993335385600. Its totient is φ = 399299025600.

The previous prime is 1397606987099. The next prime is 1397606987113. The reversal of 1397606987112 is 2117896067931.

It is not an unprimeable number, because it can be changed into a prime (1397606987113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4008987 + ... + 4343637.

It is an arithmetic number, because the mean of its divisors is an integer number (62395865400).

Almost surely, 2^{1397606987112} is an apocalyptic number.

1397606987112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1397606987112 is an abundant number, since it is smaller than the sum of its proper divisors (2595728398488).

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

1397606987112 is a wasteful number, since it uses less digits than its factorization.

1397606987112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359526 (or 359522 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 60.

The spelling of 1397606987112 in words is "one trillion, three hundred ninety-seven billion, six hundred six million, nine hundred eighty-seven thousand, one hundred twelve".