260402989392 has 960 divisors, whose sum is σ = 988352741376. Its totient is φ = 62115102720.

The previous prime is 260402989387. The next prime is 260402989433. The reversal of 260402989392 is 293989204062.

260402989392 is a `hidden beast` number, since 2 + 60 + 402 + 9 + 8 + 93 + 92 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 439127848 + ... + 439128440.

Almost surely, 2^260402989392 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 260402989392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494176370688).

260402989392 is an abundant number, since it is smaller than the sum of its proper divisors (727949751984).

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

260402989392 is a wasteful number, since it uses less digits than its factorization.

260402989392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 719 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 260402989392 in words is "two hundred sixty billion, four hundred two million, nine hundred eighty-nine thousand, three hundred ninety-two".