12496445377 has 4 divisors (see below), whose sum is σ = 13457710420. Its totient is φ = 11535180336.

The previous prime is 12496445347. The next prime is 12496445431. The reversal of 12496445377 is 77354469421.

It is a happy number.

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 3266808336 + 9229637041 = 57156^2 + 96071^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12496445377 is a prime.

It is a super-2 number, since 2×12496445377² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12496445347) 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, 480632502 + ... + 480632527.

It is an arithmetic number, because the mean of its divisors is an integer number (3364427605).

Almost surely, 2^12496445377 is an apocalyptic number.

It is an amenable number.

12496445377 is a deficient number, since it is larger than the sum of its proper divisors (961265043).

12496445377 is an equidigital number, since it uses as much as digits as its factorization.

12496445377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961265042.

The product of its digits is 5080320, while the sum is 52.

The spelling of 12496445377 in words is "twelve billion, four hundred ninety-six million, four hundred forty-five thousand, three hundred seventy-seven".