260449243992 has 128 divisors (see below), whose sum is σ = 828691545600. Its totient is φ = 74245901184.

The previous prime is 260449243969. The next prime is 260449244059. The reversal of 260449243992 is 299342944062.

260449243992 is a `hidden beast` number, since 2 + 60 + 4 + 492 + 4 + 3 + 9 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 475398 + ... + 864234.

It is an arithmetic number, because the mean of its divisors is an integer number (6474152700).

Almost surely, 2^260449243992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 260449243992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (414345772800).

260449243992 is an abundant number, since it is smaller than the sum of its proper divisors (568242301608).

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

260449243992 is a wasteful number, since it uses less digits than its factorization.

260449243992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389302 (or 389292 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 54.

The spelling of 260449243992 in words is "two hundred sixty billion, four hundred forty-nine million, two hundred forty-three thousand, nine hundred ninety-two".