895139820522 has 64 divisors (see below), whose sum is σ = 1994628049920. Its totient is φ = 297566622000.

The previous prime is 895139820493. The next prime is 895139820563. The reversal of 895139820522 is 225028931598.

It is a happy number.

895139820522 is a `hidden beast` number, since 8 + 9 + 5 + 1 + 3 + 98 + 20 + 522 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 31 ways as a sum of consecutive naturals, for example, 36448147 + ... + 36472697.

It is an arithmetic number, because the mean of its divisors is an integer number (31166063280).

Almost surely, 2^895139820522 is an apocalyptic number.

895139820522 is an abundant number, since it is smaller than the sum of its proper divisors (1099488229398).

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

895139820522 is a wasteful number, since it uses less digits than its factorization.

895139820522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26376 (or 26370 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 54.

The spelling of 895139820522 in words is "eight hundred ninety-five billion, one hundred thirty-nine million, eight hundred twenty thousand, five hundred twenty-two".