261341630014450 has 24 divisors (see below), whose sum is σ = 489922954924032. Its totient is φ = 103713528759120.

The previous prime is 261341630014447. The next prime is 261341630014511. The reversal of 261341630014450 is 54410036143162.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20578074754 + ... + 20578087453.

It is an arithmetic number, because the mean of its divisors is an integer number (20413456455168).

Almost surely, 2^{261341630014450} is an apocalyptic number.

261341630014450 is a deficient number, since it is larger than the sum of its proper divisors (228581324909582).

261341630014450 is a wasteful number, since it uses less digits than its factorization.

261341630014450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41156162346 (or 41156162341 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 261341630014450 in words is "two hundred sixty-one trillion, three hundred forty-one billion, six hundred thirty million, fourteen thousand, four hundred fifty".