15642348941 has 4 divisors (see below), whose sum is σ = 16562487132. Its totient is φ = 14722210752.

The previous prime is 15642348929. The next prime is 15642348959. The reversal of 15642348941 is 14984324651.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6585971716 + 9056377225 = 81154^2 + 95165^2 .

It is a cyclic number.

It is not a de Polignac number, because 15642348941 - 2¹⁴ = 15642332557 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 (15642348961) 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, 460069070 + ... + 460069103.

It is an arithmetic number, because the mean of its divisors is an integer number (4140621783).

Almost surely, 2^15642348941 is an apocalyptic number.

It is an amenable number.

15642348941 is a deficient number, since it is larger than the sum of its proper divisors (920138191).

15642348941 is an equidigital number, since it uses as much as digits as its factorization.

15642348941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920138190.

The product of its digits is 829440, while the sum is 47.

The spelling of 15642348941 in words is "fifteen billion, six hundred forty-two million, three hundred forty-eight thousand, nine hundred forty-one".