260618871990 has 16 divisors (see below), whose sum is σ = 625485292848. Its totient is φ = 69498365856.

The previous prime is 260618871983. The next prime is 260618872013. The reversal of 260618871990 is 99178816062.

260618871990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 260618871990.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4343647837 + ... + 4343647896.

It is an arithmetic number, because the mean of its divisors is an integer number (39092830803).

Almost surely, 2^260618871990 is an apocalyptic number.

260618871990 is an abundant number, since it is smaller than the sum of its proper divisors (364866420858).

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

260618871990 is a wasteful number, since it uses less digits than its factorization.

260618871990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8687295743.

The product of its (nonzero) digits is 2612736, while the sum is 57.

The spelling of 260618871990 in words is "two hundred sixty billion, six hundred eighteen million, eight hundred seventy-one thousand, nine hundred ninety".