157864285807 has 6 divisors (see below), whose sum is σ = 159411839712. Its totient is φ = 156331612332.

The previous prime is 157864285793. The next prime is 157864285811. The reversal of 157864285807 is 708582468751.

It is a happy number.

It is not a de Polignac number, because 157864285807 - 2²⁷ = 157730068079 is a prime.

It is a super-2 number, since 2×157864285807² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157864285867) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7429503 + ... + 7450720.

It is an arithmetic number, because the mean of its divisors is an integer number (26568639952).

Almost surely, 2^157864285807 is an apocalyptic number.

157864285807 is a deficient number, since it is larger than the sum of its proper divisors (1547553905).

157864285807 is an equidigital number, since it uses as much as digits as its factorization.

157864285807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14880429 (or 14880326 counting only the distinct ones).

The product of its (nonzero) digits is 30105600, while the sum is 61.

The spelling of 157864285807 in words is "one hundred fifty-seven billion, eight hundred sixty-four million, two hundred eighty-five thousand, eight hundred seven".