3889172686 has 32 divisors (see below), whose sum is σ = 6780026880. Its totient is φ = 1638748800.

The previous prime is 3889172627. The next prime is 3889172699. The reversal of 3889172686 is 6862719883.

It is a self number, because there is not a number n which added to its sum of digits gives 3889172686.

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, 259251 + ... + 273841.

It is an arithmetic number, because the mean of its divisors is an integer number (211875840).

Almost surely, 2^3889172686 is an apocalyptic number.

3889172686 is a deficient number, since it is larger than the sum of its proper divisors (2890854194).

3889172686 is a wasteful number, since it uses less digits than its factorization.

3889172686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14920.

The product of its digits is 6967296, while the sum is 58.

The square root of 3889172686 is about 62363.2318437715. The cubic root of 3889172686 is about 1572.6029125442.

The spelling of 3889172686 in words is "three billion, eight hundred eighty-nine million, one hundred seventy-two thousand, six hundred eighty-six".