261430536314242 has 8 divisors (see below), whose sum is σ = 392179232671632. Its totient is φ = 130704125423700.

The previous prime is 261430536314239. The next prime is 261430536314251. The reversal of 261430536314242 is 242413635034162.

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

It is a junction number, because it is equal to n+sod(n) for n = 261430536314192 and 261430536314201.

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, 5571337384 + ... + 5571384307.

It is an arithmetic number, because the mean of its divisors is an integer number (49022404083954).

Almost surely, 2^{261430536314242} is an apocalyptic number.

261430536314242 is a deficient number, since it is larger than the sum of its proper divisors (130748696357390).

261430536314242 is a wasteful number, since it uses less digits than its factorization.

261430536314242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11142733424.

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 261430536314242 in words is "two hundred sixty-one trillion, four hundred thirty billion, five hundred thirty-six million, three hundred fourteen thousand, two hundred forty-two".