12692471961 has 16 divisors (see below), whose sum is σ = 19017484416. Its totient is φ = 7471153536.

The previous prime is 12692471951. The next prime is 12692472029. The reversal of 12692471961 is 16917429621.

It is a happy number.

It is not a de Polignac number, because 12692471961 - 2⁵ = 12692471929 is a prime.

It is a super-2 number, since 2×12692471961² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12692471961.

It is not an unprimeable number, because it can be changed into a prime (12692471921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7074060 + ... + 7075853.

It is an arithmetic number, because the mean of its divisors is an integer number (1188592776).

Almost surely, 2^12692471961 is an apocalyptic number.

It is an amenable number.

12692471961 is a deficient number, since it is larger than the sum of its proper divisors (6325012455).

12692471961 is a wasteful number, since it uses less digits than its factorization.

12692471961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14149952.

The product of its digits is 326592, while the sum is 48.

The spelling of 12692471961 in words is "twelve billion, six hundred ninety-two million, four hundred seventy-one thousand, nine hundred sixty-one".