126386655091 has 48 divisors (see below), whose sum is σ = 141579923328. Its totient is φ = 112347648000.

The previous prime is 126386655089. The next prime is 126386655107. The reversal of 126386655091 is 190556683621.

It is not a de Polignac number, because 126386655091 - 2¹ = 126386655089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126386655191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 315178491 + ... + 315178891.

It is an arithmetic number, because the mean of its divisors is an integer number (2949581736).

Almost surely, 2^126386655091 is an apocalyptic number.

126386655091 is a deficient number, since it is larger than the sum of its proper divisors (15193268237).

126386655091 is a wasteful number, since it uses less digits than its factorization.

126386655091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 769 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 52.

The spelling of 126386655091 in words is "one hundred twenty-six billion, three hundred eighty-six million, six hundred fifty-five thousand, ninety-one".