261342562030 has 64 divisors (see below), whose sum is σ = 528368702400. Its totient is φ = 92244812800.

The previous prime is 261342562003. The next prime is 261342562051. The reversal of 261342562030 is 30265243162.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 741396 + ... + 1035544.

It is an arithmetic number, because the mean of its divisors is an integer number (8255760975).

Almost surely, 2^261342562030 is an apocalyptic number.

261342562030 is an abundant number, since it is smaller than the sum of its proper divisors (267026140370).

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

261342562030 is a wasteful number, since it uses less digits than its factorization.

261342562030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294405.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 261342562030 in words is "two hundred sixty-one billion, three hundred forty-two million, five hundred sixty-two thousand, thirty".