157503486691 has 2 divisors, whose sum is σ = 157503486692. Its totient is φ = 157503486690.

The previous prime is 157503486689. The next prime is 157503486821. The reversal of 157503486691 is 196684305751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157503486691 - 2¹ = 157503486689 is a prime.

Together with 157503486689, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (157503486191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78751743345 + 78751743346.

It is an arithmetic number, because the mean of its divisors is an integer number (78751743346).

Almost surely, 2^157503486691 is an apocalyptic number.

157503486691 is a deficient number, since it is larger than the sum of its proper divisors (1).

157503486691 is an equidigital number, since it uses as much as digits as its factorization.

157503486691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 157503486691 in words is "one hundred fifty-seven billion, five hundred three million, four hundred eighty-six thousand, six hundred ninety-one".