12696527770 has 8 divisors (see below), whose sum is σ = 22853750004. Its totient is φ = 5078611104.

The previous prime is 12696527761. The next prime is 12696527771. The reversal of 12696527770 is 7772569621.

It can be written as a sum of positive squares in 2 ways, for example, as 12241430881 + 455096889 = 110641^2 + 21333^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12696527770² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12696527771) 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, 634826379 + ... + 634826398.

Almost surely, 2^12696527770 is an apocalyptic number.

12696527770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12696527770 is a deficient number, since it is larger than the sum of its proper divisors (10157222234).

12696527770 is a wasteful number, since it uses less digits than its factorization.

12696527770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269652784.

The product of its (nonzero) digits is 2222640, while the sum is 52.

The spelling of 12696527770 in words is "twelve billion, six hundred ninety-six million, five hundred twenty-seven thousand, seven hundred seventy".