126861025319 has 16 divisors (see below), whose sum is σ = 151862971392. Its totient is φ = 103614770688.

The previous prime is 126861025261. The next prime is 126861025363. The reversal of 126861025319 is 913520168621.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 126861025319 - 2²⁰ = 126859976743 is a prime.

It is a super-2 number, since 2×126861025319² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126861025319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126861025399) 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, 1455674 + ... + 1540359.

It is an arithmetic number, because the mean of its divisors is an integer number (9491435712).

Almost surely, 2^126861025319 is an apocalyptic number.

126861025319 is a deficient number, since it is larger than the sum of its proper divisors (25001946073).

126861025319 is a wasteful number, since it uses less digits than its factorization.

126861025319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2996326.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 126861025319 in words is "one hundred twenty-six billion, eight hundred sixty-one million, twenty-five thousand, three hundred nineteen".