126582625491 has 16 divisors (see below), whose sum is σ = 193333292544. Its totient is φ = 72165873024.

The previous prime is 126582625423. The next prime is 126582625501. The reversal of 126582625491 is 194526285621.

It is not a de Polignac number, because 126582625491 - 2⁹ = 126582624979 is a prime.

It is a super-2 number, since 2×126582625491² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126582625891) 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, 6951351 + ... + 6969536.

It is an arithmetic number, because the mean of its divisors is an integer number (12083330784).

Almost surely, 2^126582625491 is an apocalyptic number.

126582625491 is a deficient number, since it is larger than the sum of its proper divisors (66750667053).

126582625491 is a wasteful number, since it uses less digits than its factorization.

126582625491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13921330.

The product of its digits is 2073600, while the sum is 51.

The spelling of 126582625491 in words is "one hundred twenty-six billion, five hundred eighty-two million, six hundred twenty-five thousand, four hundred ninety-one".