15153938643 has 4 divisors (see below), whose sum is σ = 20205251528. Its totient is φ = 10102625760.

The previous prime is 15153938629. The next prime is 15153938659. The reversal of 15153938643 is 34683935151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34683935151 = 3 ⋅11561311717.

It is not a de Polignac number, because 15153938643 - 2⁴ = 15153938627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15153938592 and 15153938601.

It is not an unprimeable number, because it can be changed into a prime (15153938543) 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, 2525656438 + ... + 2525656443.

It is an arithmetic number, because the mean of its divisors is an integer number (5051312882).

Almost surely, 2^15153938643 is an apocalyptic number.

15153938643 is a deficient number, since it is larger than the sum of its proper divisors (5051312885).

15153938643 is an equidigital number, since it uses as much as digits as its factorization.

15153938643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051312884.

The product of its digits is 1166400, while the sum is 48.

The spelling of 15153938643 in words is "fifteen billion, one hundred fifty-three million, nine hundred thirty-eight thousand, six hundred forty-three".