15045421051 has 2 divisors, whose sum is σ = 15045421052. Its totient is φ = 15045421050.

The previous prime is 15045421031. The next prime is 15045421081. The reversal of 15045421051 is 15012454051.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15045421051 - 2⁵ = 15045421019 is a prime.

It is not a weakly prime, because it can be changed into another prime (15045421031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7522710525 + 7522710526.

It is an arithmetic number, because the mean of its divisors is an integer number (7522710526).

Almost surely, 2^15045421051 is an apocalyptic number.

15045421051 is a deficient number, since it is larger than the sum of its proper divisors (1).

15045421051 is an equidigital number, since it uses as much as digits as its factorization.

15045421051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 15045421051 in words is "fifteen billion, forty-five million, four hundred twenty-one thousand, fifty-one".