1391233417925 has 96 divisors (see below), whose sum is σ = 1949275238400. Its totient is φ = 977314947840.

The previous prime is 1391233417907. The next prime is 1391233417961. The reversal of 1391233417925 is 5297143321931.

It is not a de Polignac number, because 1391233417925 - 2²² = 1391229223621 is a prime.

It is a super-2 number, since 2×1391233417925² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1934955716 + ... + 1934956434.

It is an arithmetic number, because the mean of its divisors is an integer number (20304950400).

Almost surely, 2^{1391233417925} is an apocalyptic number.

It is an amenable number.

1391233417925 is a deficient number, since it is larger than the sum of its proper divisors (558041820475).

1391233417925 is a wasteful number, since it uses less digits than its factorization.

1391233417925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1827 (or 1822 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 50.

The spelling of 1391233417925 in words is "one trillion, three hundred ninety-one billion, two hundred thirty-three million, four hundred seventeen thousand, nine hundred twenty-five".