260897649388 has 12 divisors (see below), whose sum is σ = 459371935960. Its totient is φ = 129648524832.

The previous prime is 260897649373. The next prime is 260897649413. The reversal of 260897649388 is 883946798062.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200074233 + ... + 200075536.

Almost surely, 2^260897649388 is an apocalyptic number.

It is an amenable number.

260897649388 is a deficient number, since it is larger than the sum of its proper divisors (198474286572).

260897649388 is a wasteful number, since it uses less digits than its factorization.

260897649388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400149936 (or 400149934 counting only the distinct ones).

The product of its (nonzero) digits is 250822656, while the sum is 70.

It can be divided in two parts, 2608 and 97649388, that multiplied together give a square (254669603904 = 504648²).

The spelling of 260897649388 in words is "two hundred sixty billion, eight hundred ninety-seven million, six hundred forty-nine thousand, three hundred eighty-eight".