261674519708 has 12 divisors (see below), whose sum is σ = 523349039472. Its totient is φ = 112146222720.

The previous prime is 261674519699. The next prime is 261674519723. The reversal of 261674519708 is 807915476162.

It is a happy number.

261674519708 is an admirable number.

It is a hoax number, since the sum of its digits (56) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4672759253 + ... + 4672759308.

It is an arithmetic number, because the mean of its divisors is an integer number (43612419956).

Almost surely, 2^261674519708 is an apocalyptic number.

261674519708 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

261674519708 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

261674519708 is a wasteful number, since it uses less digits than its factorization.

261674519708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9345518572 (or 9345518570 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 261674519708 in words is "two hundred sixty-one billion, six hundred seventy-four million, five hundred nineteen thousand, seven hundred eight".