122805753887 has 4 divisors (see below), whose sum is σ = 122816584176. Its totient is φ = 122794923600.

The previous prime is 122805753881. The next prime is 122805753913. The reversal of 122805753887 is 788357508221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122805753887 - 2⁴ = 122805753871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122805753881) 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, 5398118 + ... + 5420819.

It is an arithmetic number, because the mean of its divisors is an integer number (30704146044).

Almost surely, 2^122805753887 is an apocalyptic number.

122805753887 is a deficient number, since it is larger than the sum of its proper divisors (10830289).

122805753887 is a wasteful number, since it uses less digits than its factorization.

122805753887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10830288.

The product of its (nonzero) digits is 7526400, while the sum is 56.

The spelling of 122805753887 in words is "one hundred twenty-two billion, eight hundred five million, seven hundred fifty-three thousand, eight hundred eighty-seven".