4131698505918 has 16 divisors (see below), whose sum is σ = 8265072197136. Its totient is φ = 1376953637760.

The previous prime is 4131698505841. The next prime is 4131698506021. The reversal of 4131698505918 is 8195058961314.

It is a happy number.

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, 69767323 + ... + 69826518.

It is an arithmetic number, because the mean of its divisors is an integer number (516567012321).

Almost surely, 2^{4131698505918} is an apocalyptic number.

4131698505918 is an abundant number, since it is smaller than the sum of its proper divisors (4133373691218).

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

4131698505918 is a wasteful number, since it uses less digits than its factorization.

4131698505918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139598779.

The product of its (nonzero) digits is 9331200, while the sum is 60.

The spelling of 4131698505918 in words is "four trillion, one hundred thirty-one billion, six hundred ninety-eight million, five hundred five thousand, nine hundred eighteen".