157023744747 has 4 divisors (see below), whose sum is σ = 209364993000. Its totient is φ = 104682496496.

The previous prime is 157023744701. The next prime is 157023744763. The reversal of 157023744747 is 747447320751.

157023744747 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 is a cyclic number.

It is not a de Polignac number, because 157023744747 - 2¹⁵ = 157023711979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157023744747.

It is not an unprimeable number, because it can be changed into a prime (157023744767) 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, 26170624122 + ... + 26170624127.

It is an arithmetic number, because the mean of its divisors is an integer number (52341248250).

Almost surely, 2^157023744747 is an apocalyptic number.

157023744747 is a deficient number, since it is larger than the sum of its proper divisors (52341248253).

157023744747 is an equidigital number, since it uses as much as digits as its factorization.

157023744747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52341248252.

The product of its (nonzero) digits is 4609920, while the sum is 51.

The spelling of 157023744747 in words is "one hundred fifty-seven billion, twenty-three million, seven hundred forty-four thousand, seven hundred forty-seven".