126861025318 has 16 divisors (see below), whose sum is σ = 201579911280. Its totient is φ = 59671230976.

The previous prime is 126861025261. The next prime is 126861025363. The reversal of 126861025318 is 813520168621.

It is a super-2 number, since 2×126861025318² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 803896 + ... + 948667.

It is an arithmetic number, because the mean of its divisors is an integer number (12598744455).

Almost surely, 2^126861025318 is an apocalyptic number.

126861025318 is a deficient number, since it is larger than the sum of its proper divisors (74718885962).

126861025318 is a wasteful number, since it uses less digits than its factorization.

126861025318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1754711.

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 126861025318 in words is "one hundred twenty-six billion, eight hundred sixty-one million, twenty-five thousand, three hundred eighteen".