260680992490 has 8 divisors (see below), whose sum is σ = 469225786500. Its totient is φ = 104272396992.

The previous prime is 260680992461. The next prime is 260680992491. The reversal of 260680992490 is 94299086062.

It can be written as a sum of positive squares in 2 ways, for example, as 211030903161 + 49650089329 = 459381^2 + 222823^2 .

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

It is not an unprimeable number, because it can be changed into a prime (260680992491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13034049615 + ... + 13034049634.

Almost surely, 2^260680992490 is an apocalyptic number.

260680992490 is a deficient number, since it is larger than the sum of its proper divisors (208544794010).

260680992490 is a wasteful number, since it uses less digits than its factorization.

260680992490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26068099256.

The product of its (nonzero) digits is 3359232, while the sum is 55.

The spelling of 260680992490 in words is "two hundred sixty billion, six hundred eighty million, nine hundred ninety-two thousand, four hundred ninety".