12695627340 has 216 divisors, whose sum is σ = 43899033360. Its totient is φ = 3077585280.

The previous prime is 12695627303. The next prime is 12695627341. The reversal of 12695627340 is 4372659621.

12695627340 is a `hidden beast` number, since 12 + 6 + 9 + 5 + 627 + 3 + 4 + 0 = 666.

It is a super-2 number, since 2×12695627340² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (12695627341) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 577266 + ... + 598854.

Almost surely, 2^12695627340 is an apocalyptic number.

12695627340 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 12695627340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21949516680).

12695627340 is an abundant number, since it is smaller than the sum of its proper divisors (31203406020).

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

12695627340 is a wasteful number, since it uses less digits than its factorization.

12695627340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21635 (or 21610 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 12695627340 in words is "twelve billion, six hundred ninety-five million, six hundred twenty-seven thousand, three hundred forty".