157903010291 has 8 divisors (see below), whose sum is σ = 171055607520. Its totient is φ = 145756622856.

The previous prime is 157903010257. The next prime is 157903010297. The reversal of 157903010291 is 192010309751.

157903010291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-157903010291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157903010297) 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 7 ways as a sum of consecutive naturals, for example, 35933855 + ... + 35938248.

It is an arithmetic number, because the mean of its divisors is an integer number (21381950940).

Almost surely, 2^157903010291 is an apocalyptic number.

157903010291 is a deficient number, since it is larger than the sum of its proper divisors (13152597229).

157903010291 is an frugal number, since it uses more digits than its factorization.

157903010291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71872142 (or 71872116 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 38.

The spelling of 157903010291 in words is "one hundred fifty-seven billion, nine hundred three million, ten thousand, two hundred ninety-one".