12699495479280 has 320 divisors, whose sum is σ = 44209662686208. Its totient is φ = 2998764257280.

The previous prime is 12699495479227. The next prime is 12699495479287. The reversal of 12699495479280 is 8297459499621.

It is a super-2 number, since 2×12699495479280² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12699495479287) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4614967 + ... + 6833513.

Almost surely, 2^{12699495479280} is an apocalyptic number.

12699495479280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12699495479280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22104831343104).

12699495479280 is an abundant number, since it is smaller than the sum of its proper divisors (31510167206928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12699495479280 is a wasteful number, since it uses less digits than its factorization.

12699495479280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2218664 (or 2218658 counting only the distinct ones).

The product of its (nonzero) digits is 705438720, while the sum is 75.

The spelling of 12699495479280 in words is "twelve trillion, six hundred ninety-nine billion, four hundred ninety-five million, four hundred seventy-nine thousand, two hundred eighty".