261876892 has 12 divisors (see below), whose sum is σ = 459111240. Its totient is φ = 130702256.

The previous prime is 261876889. The next prime is 261876899. The reversal of 261876892 is 298678162.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261876899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56542 + ... + 60997.

It is an arithmetic number, because the mean of its divisors is an integer number (38259270).

Almost surely, 2^261876892 is an apocalyptic number.

It is an amenable number.

261876892 is a deficient number, since it is larger than the sum of its proper divisors (197234348).

261876892 is a wasteful number, since it uses less digits than its factorization.

261876892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118100 (or 118098 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 261876892 is about 16182.6107905987. The cubic root of 261876892 is about 639.7825530816.

The spelling of 261876892 in words is "two hundred sixty-one million, eight hundred seventy-six thousand, eight hundred ninety-two".