12628790377515 has 40 divisors (see below), whose sum is σ = 24379681946928. Its totient is φ = 6217250644800.

The previous prime is 12628790377513. The next prime is 12628790377517. The reversal of 12628790377515 is 51577309782621.

It is a happy number.

12628790377515 is a `hidden beast` number, since 1 + 2 + 6 + 2 + 87 + 9 + 0 + 37 + 7 + 515 = 666.

It is an interprime number because it is at equal distance from previous prime (12628790377513) and next prime (12628790377517).

It is not a de Polignac number, because 12628790377515 - 2¹ = 12628790377513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12628790377513) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1199310061 + ... + 1199320590.

Almost surely, 2^{12628790377515} is an apocalyptic number.

12628790377515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12628790377515 is a deficient number, since it is larger than the sum of its proper divisors (11750891569413).

12628790377515 is a wasteful number, since it uses less digits than its factorization.

12628790377515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398630681 (or 2398630672 counting only the distinct ones).

The product of its (nonzero) digits is 44452800, while the sum is 63.

The spelling of 12628790377515 in words is "twelve trillion, six hundred twenty-eight billion, seven hundred ninety million, three hundred seventy-seven thousand, five hundred fifteen".