261874630694 has 8 divisors (see below), whose sum is σ = 392961824928. Its totient is φ = 130887355720.

The previous prime is 261874630673. The next prime is 261874630733. The reversal of 261874630694 is 496036478162.

261874630694 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×261874630694² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24973262 + ... + 24983745.

It is an arithmetic number, because the mean of its divisors is an integer number (49120228116).

Almost surely, 2^261874630694 is an apocalyptic number.

261874630694 is a deficient number, since it is larger than the sum of its proper divisors (131087194234).

261874630694 is a wasteful number, since it uses less digits than its factorization.

261874630694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49959630.

The product of its (nonzero) digits is 10450944, while the sum is 56.

The spelling of 261874630694 in words is "two hundred sixty-one billion, eight hundred seventy-four million, six hundred thirty thousand, six hundred ninety-four".