873993605261 has 12 divisors (see below), whose sum is σ = 1016822011392. Its totient is φ = 749037480408.

The previous prime is 873993605257. The next prime is 873993605297. The reversal of 873993605261 is 162506399378.

It is not a de Polignac number, because 873993605261 - 2² = 873993605257 is a prime.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 873993605261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873993625261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 816845 + ... + 1554098.

It is an arithmetic number, because the mean of its divisors is an integer number (84735167616).

Almost surely, 2^873993605261 is an apocalyptic number.

It is an amenable number.

873993605261 is a deficient number, since it is larger than the sum of its proper divisors (142828406131).

873993605261 is a wasteful number, since it uses less digits than its factorization.

873993605261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2378480 (or 2378473 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 59.

The spelling of 873993605261 in words is "eight hundred seventy-three billion, nine hundred ninety-three million, six hundred five thousand, two hundred sixty-one".