261113677 has 16 divisors (see below), whose sum is σ = 288025920. Its totient is φ = 234748800.

The previous prime is 261113639. The next prime is 261113681. The reversal of 261113677 is 776311162.

261113677 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-261113677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261113077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 622974 + ... + 623392.

It is an arithmetic number, because the mean of its divisors is an integer number (18001620).

Almost surely, 2^261113677 is an apocalyptic number.

It is an amenable number.

261113677 is a deficient number, since it is larger than the sum of its proper divisors (26912243).

261113677 is a wasteful number, since it uses less digits than its factorization.

261113677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924.

The product of its digits is 10584, while the sum is 34.

The square root of 261113677 is about 16159.0122532288. The cubic root of 261113677 is about 639.1604200801.

The spelling of 261113677 in words is "two hundred sixty-one million, one hundred thirteen thousand, six hundred seventy-seven".