1597638906924 has 24 divisors (see below), whose sum is σ = 3727937696448. Its totient is φ = 532530076560.

The previous prime is 1597638906917. The next prime is 1597638906931. The reversal of 1597638906924 is 4296098367951.

It is an interprime number because it is at equal distance from previous prime (1597638906917) and next prime (1597638906931).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1614582 + ... + 2408765.

It is an arithmetic number, because the mean of its divisors is an integer number (155330737352).

It is a 1-persistent number, because it is pandigital, but 2⋅1597638906924 = 3195277813848 is not.

Almost surely, 2^{1597638906924} is an apocalyptic number.

It is an amenable number.

1597638906924 is an abundant number, since it is smaller than the sum of its proper divisors (2130298789524).

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

1597638906924 is a wasteful number, since it uses less digits than its factorization.

1597638906924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4056445 (or 4056443 counting only the distinct ones).

The product of its (nonzero) digits is 176359680, while the sum is 69.

The spelling of 1597638906924 in words is "one trillion, five hundred ninety-seven billion, six hundred thirty-eight million, nine hundred six thousand, nine hundred twenty-four".