2131671910 has 16 divisors (see below), whose sum is σ = 3960784512. Its totient is φ = 825163200.

The previous prime is 2131671859. The next prime is 2131671911. The reversal of 2131671910 is 191761312.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131671911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3437871 + ... + 3438490.

It is an arithmetic number, because the mean of its divisors is an integer number (247549032).

Almost surely, 2^2131671910 is an apocalyptic number.

2131671910 is a deficient number, since it is larger than the sum of its proper divisors (1829112602).

2131671910 is a wasteful number, since it uses less digits than its factorization.

2131671910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6876399.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 2131671910 is about 46170.0325969129. The cubic root of 2131671910 is about 1286.9849079765.

It can be divided in two parts, 2131 and 671910, that added together give a square (674041 = 821²).

The spelling of 2131671910 in words is "two billion, one hundred thirty-one million, six hundred seventy-one thousand, nine hundred ten".