15442865051 has 4 divisors (see below), whose sum is σ = 15492203592. Its totient is φ = 15393526512.

The previous prime is 15442865003. The next prime is 15442865057. The reversal of 15442865051 is 15056824451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15056824451 = 379 ⋅39727769.

It is a cyclic number.

It is not a de Polignac number, because 15442865051 - 2¹⁰ = 15442864027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15442865057) 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, 24668801 + ... + 24669426.

It is an arithmetic number, because the mean of its divisors is an integer number (3873050898).

Almost surely, 2^15442865051 is an apocalyptic number.

15442865051 is a deficient number, since it is larger than the sum of its proper divisors (49338541).

15442865051 is an equidigital number, since it uses as much as digits as its factorization.

15442865051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49338540.

The product of its (nonzero) digits is 192000, while the sum is 41.

The spelling of 15442865051 in words is "fifteen billion, four hundred forty-two million, eight hundred sixty-five thousand, fifty-one".