1157653867523 has 8 divisors (see below), whose sum is σ = 1158193479600. Its totient is φ = 1157114387968.

The previous prime is 1157653867507. The next prime is 1157653867543. The reversal of 1157653867523 is 3257683567511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1157653867523 - 2⁴ = 1157653867507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1157653867543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20217548 + ... + 20274726.

It is an arithmetic number, because the mean of its divisors is an integer number (144774184950).

Almost surely, 2^{1157653867523} is an apocalyptic number.

1157653867523 is a deficient number, since it is larger than the sum of its proper divisors (539612077).

1157653867523 is an equidigital number, since it uses as much as digits as its factorization.

1157653867523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66261.

The product of its digits is 31752000, while the sum is 59.

The spelling of 1157653867523 in words is "one trillion, one hundred fifty-seven billion, six hundred fifty-three million, eight hundred sixty-seven thousand, five hundred twenty-three".