11859494239506 has 64 divisors (see below), whose sum is σ = 24520973621760. Its totient is φ = 3820990371840.

The previous prime is 11859494239499. The next prime is 11859494239547. The reversal of 11859494239506 is 60593249495811.

It is a happy number.

It is a super-2 number, since 2×11859494239506² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21611335 + ... + 22153301.

It is an arithmetic number, because the mean of its divisors is an integer number (383140212840).

Almost surely, 2^{11859494239506} is an apocalyptic number.

11859494239506 is an abundant number, since it is smaller than the sum of its proper divisors (12661479382254).

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

11859494239506 is a wasteful number, since it uses less digits than its factorization.

11859494239506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542659.

The product of its (nonzero) digits is 83980800, while the sum is 66.

The spelling of 11859494239506 in words is "eleven trillion, eight hundred fifty-nine billion, four hundred ninety-four million, two hundred thirty-nine thousand, five hundred six".