12697535770 has 8 divisors (see below), whose sum is σ = 22855564404. Its totient is φ = 5079014304.

The previous prime is 12697535761. The next prime is 12697535849. The reversal of 12697535770 is 7753579621.

It can be written as a sum of positive squares in 2 ways, for example, as 12084824761 + 612711009 = 109931^2 + 24753^2 .

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

It is a super-2 number, since 2×12697535770² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634876779 + ... + 634876798.

Almost surely, 2^12697535770 is an apocalyptic number.

12697535770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12697535770 is a deficient number, since it is larger than the sum of its proper divisors (10158028634).

12697535770 is a wasteful number, since it uses less digits than its factorization.

12697535770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1269753584.

The product of its (nonzero) digits is 2778300, while the sum is 52.

The spelling of 12697535770 in words is "twelve billion, six hundred ninety-seven million, five hundred thirty-five thousand, seven hundred seventy".