261084023426032 has 80 divisors (see below), whose sum is σ = 523573364334592. Its totient is φ = 126045467331840.

The previous prime is 261084023426027. The next prime is 261084023426047. The reversal of 261084023426032 is 230624320480162.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a self number, because there is not a number n which added to its sum of digits gives 261084023426032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18809557 + ... + 29596747.

Almost surely, 2^{261084023426032} is an apocalyptic number.

It is an amenable number.

261084023426032 is an abundant number, since it is smaller than the sum of its proper divisors (262489340908560).

261084023426032 is a wasteful number, since it uses less digits than its factorization.

261084023426032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10787646 (or 10787640 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 261084023426032 in words is "two hundred sixty-one trillion, eighty-four billion, twenty-three million, four hundred twenty-six thousand, thirty-two".