126769691672 has 32 divisors (see below), whose sum is σ = 257407340400. Its totient is φ = 58182213504.

The previous prime is 126769691663. The next prime is 126769691677. The reversal of 126769691672 is 276196967621.

It is a super-2 number, since 2×126769691672² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126769691677) 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, 3386243 + ... + 3423474.

Almost surely, 2^126769691672 is an apocalyptic number.

It is an amenable number.

126769691672 is an abundant number, since it is smaller than the sum of its proper divisors (130637648728).

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

126769691672 is a wasteful number, since it uses less digits than its factorization.

126769691672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6809915 (or 6809911 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 62.

The spelling of 126769691672 in words is "one hundred twenty-six billion, seven hundred sixty-nine million, six hundred ninety-one thousand, six hundred seventy-two".