1881913258906 has 16 divisors (see below), whose sum is σ = 2834861598720. Its totient is φ = 936959894640.

The previous prime is 1881913258877. The next prime is 1881913258931. The reversal of 1881913258906 is 6098523191881.

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, 7928260 + ... + 8162176.

It is an arithmetic number, because the mean of its divisors is an integer number (177178849920).

Almost surely, 2^{1881913258906} is an apocalyptic number.

1881913258906 is a deficient number, since it is larger than the sum of its proper divisors (952948339814).

1881913258906 is a wasteful number, since it uses less digits than its factorization.

1881913258906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250989.

The product of its (nonzero) digits is 7464960, while the sum is 61.

The spelling of 1881913258906 in words is "one trillion, eight hundred eighty-one billion, nine hundred thirteen million, two hundred fifty-eight thousand, nine hundred six".