126685613764 has 12 divisors (see below), whose sum is σ = 221914865088. Its totient is φ = 63281366600.

The previous prime is 126685613741. The next prime is 126685613771. The reversal of 126685613764 is 467316586621.

It is a happy number.

It is a super-2 number, since 2×126685613764² (a number of 23 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, 15355432 + ... + 15363679.

It is an arithmetic number, because the mean of its divisors is an integer number (18492905424).

Almost surely, 2^126685613764 is an apocalyptic number.

It is an amenable number.

126685613764 is a deficient number, since it is larger than the sum of its proper divisors (95229251324).

126685613764 is a wasteful number, since it uses less digits than its factorization.

126685613764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30720146 (or 30720144 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 55.

The spelling of 126685613764 in words is "one hundred twenty-six billion, six hundred eighty-five million, six hundred thirteen thousand, seven hundred sixty-four".