133704791397 has 56 divisors (see below), whose sum is σ = 207418872320. Its totient is φ = 86058275040.

The previous prime is 133704791387. The next prime is 133704791401. The reversal of 133704791397 is 793197407331.

133704791397 is a `hidden beast` number, since 1 + 3 + 3 + 70 + 479 + 13 + 97 = 666.

It is not a de Polignac number, because 133704791397 - 2²⁴ = 133688014181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133704791317) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 9914223 + ... + 9927699.

Almost surely, 2^133704791397 is an apocalyptic number.

It is an amenable number.

133704791397 is a deficient number, since it is larger than the sum of its proper divisors (73714080923).

133704791397 is an equidigital number, since it uses as much as digits as its factorization.

133704791397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13965 (or 13950 counting only the distinct ones).

The product of its (nonzero) digits is 3000564, while the sum is 54.

The spelling of 133704791397 in words is "one hundred thirty-three billion, seven hundred four million, seven hundred ninety-one thousand, three hundred ninety-seven".