1597637485812 has 24 divisors (see below), whose sum is σ = 3947104377216. Its totient is φ = 501219603328.

The previous prime is 1597637485793. The next prime is 1597637485819. The reversal of 1597637485812 is 2185847367951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1597637485819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3915777948 + ... + 3915778355.

It is an arithmetic number, because the mean of its divisors is an integer number (164462682384).

Almost surely, 2^{1597637485812} is an apocalyptic number.

1597637485812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1597637485812 is an abundant number, since it is smaller than the sum of its proper divisors (2349466891404).

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

1597637485812 is a wasteful number, since it uses less digits than its factorization.

1597637485812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7831556327 (or 7831556325 counting only the distinct ones).

The product of its digits is 101606400, while the sum is 66.

The spelling of 1597637485812 in words is "one trillion, five hundred ninety-seven billion, six hundred thirty-seven million, four hundred eighty-five thousand, eight hundred twelve".