12451265079 has 24 divisors (see below), whose sum is σ = 19114324992. Its totient is φ = 7149044880.

The previous prime is 12451265063. The next prime is 12451265081. The reversal of 12451265079 is 97056215421.

It is not a de Polignac number, because 12451265079 - 2⁴ = 12451265063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12451265079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12451265089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 510679 + ... + 534504.

It is an arithmetic number, because the mean of its divisors is an integer number (796430208).

Almost surely, 2^12451265079 is an apocalyptic number.

12451265079 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12451265079 is a deficient number, since it is larger than the sum of its proper divisors (6663059913).

12451265079 is a wasteful number, since it uses less digits than its factorization.

12451265079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045235 (or 1045216 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 12451265079 in words is "twelve billion, four hundred fifty-one million, two hundred sixty-five thousand, seventy-nine".