157282351791 has 4 divisors (see below), whose sum is σ = 209709802392. Its totient is φ = 104854901192.

The previous prime is 157282351777. The next prime is 157282351841. The reversal of 157282351791 is 197153282751.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157282351791 - 2¹¹ = 157282349743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157282351771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26213725296 + ... + 26213725301.

It is an arithmetic number, because the mean of its divisors is an integer number (52427450598).

Almost surely, 2^157282351791 is an apocalyptic number.

157282351791 is a deficient number, since it is larger than the sum of its proper divisors (52427450601).

157282351791 is an equidigital number, since it uses as much as digits as its factorization.

157282351791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52427450600.

The product of its digits is 1058400, while the sum is 51.

The spelling of 157282351791 in words is "one hundred fifty-seven billion, two hundred eighty-two million, three hundred fifty-one thousand, seven hundred ninety-one".