12691064759045 has 8 divisors (see below), whose sum is σ = 15422053378560. Its totient is φ = 10024334695440.

The previous prime is 12691064759041. The next prime is 12691064759059. The reversal of 12691064759045 is 54095746019621.

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

It is not a de Polignac number, because 12691064759045 - 2² = 12691064759041 is a prime.

It is a super-2 number, since 2×12691064759045² (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 (12691064759041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16064638541 + ... + 16064639330.

It is an arithmetic number, because the mean of its divisors is an integer number (1927756672320).

Almost surely, 2^{12691064759045} is an apocalyptic number.

It is an amenable number.

12691064759045 is a deficient number, since it is larger than the sum of its proper divisors (2730988619515).

12691064759045 is an equidigital number, since it uses as much as digits as its factorization.

12691064759045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32129277955.

The product of its (nonzero) digits is 16329600, while the sum is 59.

The spelling of 12691064759045 in words is "twelve trillion, six hundred ninety-one billion, sixty-four million, seven hundred fifty-nine thousand, forty-five".