261454257350 has 96 divisors (see below), whose sum is σ = 572160879360. Its totient is φ = 87632208000.

The previous prime is 261454257343. The next prime is 261454257371. The reversal of 261454257350 is 53752454162.

It is a super-4 number, since 4×261454257350⁴ (a number of 47 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4914191 + ... + 4967109.

It is an arithmetic number, because the mean of its divisors is an integer number (5960009160).

Almost surely, 2^261454257350 is an apocalyptic number.

261454257350 is an abundant number, since it is smaller than the sum of its proper divisors (310706622010).

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

261454257350 is a wasteful number, since it uses less digits than its factorization.

261454257350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53646 (or 53641 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 44.

The spelling of 261454257350 in words is "two hundred sixty-one billion, four hundred fifty-four million, two hundred fifty-seven thousand, three hundred fifty".