157794768437 has 4 divisors (see below), whose sum is σ = 157875732300. Its totient is φ = 157713804576.

The previous prime is 157794768433. The next prime is 157794768473. The reversal of 157794768437 is 734867497751.

157794768437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 117211054321 + 40583714116 = 342361^2 + 201454^2 .

It is a cyclic number.

It is not a de Polignac number, because 157794768437 - 2² = 157794768433 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 (157794768431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40479008 + ... + 40482905.

It is an arithmetic number, because the mean of its divisors is an integer number (39468933075).

Almost surely, 2^157794768437 is an apocalyptic number.

It is an amenable number.

157794768437 is a deficient number, since it is larger than the sum of its proper divisors (80963863).

157794768437 is an equidigital number, since it uses as much as digits as its factorization.

157794768437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80963862.

The product of its digits is 248935680, while the sum is 68.

The spelling of 157794768437 in words is "one hundred fifty-seven billion, seven hundred ninety-four million, seven hundred sixty-eight thousand, four hundred thirty-seven".