858025982755 has 4 divisors (see below), whose sum is σ = 1029631179312. Its totient is φ = 686420786200.

The previous prime is 858025982701. The next prime is 858025982767. The reversal of 858025982755 is 557289520858.

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

It is a de Polignac number, because none of the positive numbers 2^k-858025982755 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85802598271 + ... + 85802598280.

It is an arithmetic number, because the mean of its divisors is an integer number (257407794828).

Almost surely, 2^858025982755 is an apocalyptic number.

858025982755 is a deficient number, since it is larger than the sum of its proper divisors (171605196557).

858025982755 is a wasteful number, since it uses less digits than its factorization.

858025982755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171605196556.

The product of its (nonzero) digits is 80640000, while the sum is 64.

The spelling of 858025982755 in words is "eight hundred fifty-eight billion, twenty-five million, nine hundred eighty-two thousand, seven hundred fifty-five".