4256137343886 has 32 divisors (see below), whose sum is σ = 8542133012736. Its totient is φ = 1413744696000.

The previous prime is 4256137343879. The next prime is 4256137343921. The reversal of 4256137343886 is 6883437316524.

It is a happy number.

It is a super-2 number, since 2×4256137343886² (a number of 26 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 15 ways as a sum of consecutive naturals, for example, 893641 + ... + 3051371.

It is an arithmetic number, because the mean of its divisors is an integer number (266941656648).

Almost surely, 2^{4256137343886} is an apocalyptic number.

4256137343886 is an abundant number, since it is smaller than the sum of its proper divisors (4285995668850).

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

4256137343886 is a wasteful number, since it uses less digits than its factorization.

4256137343886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2158888.

The product of its digits is 69672960, while the sum is 60.

The spelling of 4256137343886 in words is "four trillion, two hundred fifty-six billion, one hundred thirty-seven million, three hundred forty-three thousand, eight hundred eighty-six".