126139818785208 has 16 divisors (see below), whose sum is σ = 315349546963080. Its totient is φ = 42046606261728.

The previous prime is 126139818785191. The next prime is 126139818785231. The reversal of 126139818785208 is 802587818931621.

It is a super-2 number, since 2×126139818785208² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (69) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 2627912891335 + ... + 2627912891382.

Almost surely, 2^{126139818785208} is an apocalyptic number.

It is an amenable number.

126139818785208 is an abundant number, since it is smaller than the sum of its proper divisors (189209728177872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126139818785208 is a wasteful number, since it uses less digits than its factorization.

126139818785208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5255825782726 (or 5255825782722 counting only the distinct ones).

The product of its (nonzero) digits is 92897280, while the sum is 69.

The spelling of 126139818785208 in words is "one hundred twenty-six trillion, one hundred thirty-nine billion, eight hundred eighteen million, seven hundred eighty-five thousand, two hundred eight".