15749145023 has 4 divisors (see below), whose sum is σ = 15749653248. Its totient is φ = 15748636800.

The previous prime is 15749145019. The next prime is 15749145067. The reversal of 15749145023 is 32054194751.

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 15749145023 - 2² = 15749145019 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 (15749145323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204386 + ... + 270687.

It is an arithmetic number, because the mean of its divisors is an integer number (3937413312).

Almost surely, 2^15749145023 is an apocalyptic number.

15749145023 is a deficient number, since it is larger than the sum of its proper divisors (508225).

15749145023 is an equidigital number, since it uses as much as digits as its factorization.

15749145023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508224.

The product of its (nonzero) digits is 151200, while the sum is 41.

The spelling of 15749145023 in words is "fifteen billion, seven hundred forty-nine million, one hundred forty-five thousand, twenty-three".