261046877 has 64 divisors (see below), whose sum is σ = 354643968. Its totient is φ = 186624000.

The previous prime is 261046873. The next prime is 261046897. The reversal of 261046877 is 778640162.

It is a cyclic number.

It is not a de Polignac number, because 261046877 - 2² = 261046873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261046873) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4279427 + ... + 4279487.

It is an arithmetic number, because the mean of its divisors is an integer number (5541312).

Almost surely, 2^261046877 is an apocalyptic number.

It is an amenable number.

261046877 is a deficient number, since it is larger than the sum of its proper divisors (93597091).

261046877 is a wasteful number, since it uses less digits than its factorization.

261046877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 261046877 is about 16156.9451629941. The cubic root of 261046877 is about 639.1059105424.

The spelling of 261046877 in words is "two hundred sixty-one million, forty-six thousand, eight hundred seventy-seven".