15949651051 has 2 divisors, whose sum is σ = 15949651052. Its totient is φ = 15949651050.

The previous prime is 15949651021. The next prime is 15949651153. The reversal of 15949651051 is 15015694951.

It is a weak prime.

It is an emirp because it is prime and its reverse (15015694951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15949651051 - 2¹¹ = 15949649003 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15949650992 and 15949651010.

It is not a weakly prime, because it can be changed into another prime (15949651021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7974825525 + 7974825526.

It is an arithmetic number, because the mean of its divisors is an integer number (7974825526).

Almost surely, 2^15949651051 is an apocalyptic number.

15949651051 is a deficient number, since it is larger than the sum of its proper divisors (1).

15949651051 is an equidigital number, since it uses as much as digits as its factorization.

15949651051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243000, while the sum is 46.

The spelling of 15949651051 in words is "fifteen billion, nine hundred forty-nine million, six hundred fifty-one thousand, fifty-one".