1391670452157 has 8 divisors (see below), whose sum is σ = 1855909217184. Its totient is φ = 927605994288.

The previous prime is 1391670452129. The next prime is 1391670452191. The reversal of 1391670452157 is 7512540761931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1391670452157 - 2²⁶ = 1391603343293 is a prime.

It is a super-3 number, since 3×1391670452157³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391670452357) 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, 43558158 + ... + 43590095.

It is an arithmetic number, because the mean of its divisors is an integer number (231988652148).

Almost surely, 2^{1391670452157} is an apocalyptic number.

It is an amenable number.

1391670452157 is a deficient number, since it is larger than the sum of its proper divisors (464238765027).

1391670452157 is an equidigital number, since it uses as much as digits as its factorization.

1391670452157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87153579.

The product of its (nonzero) digits is 1587600, while the sum is 51.

The spelling of 1391670452157 in words is "one trillion, three hundred ninety-one billion, six hundred seventy million, four hundred fifty-two thousand, one hundred fifty-seven".