85644010254 has 16 divisors (see below), whose sum is σ = 186859658880. Its totient is φ = 25952730360.

The previous prime is 85644010247. The next prime is 85644010261. The reversal of 85644010254 is 45201044658.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (85644010247) and next prime (85644010261).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648818194 + ... + 648818325.

It is an arithmetic number, because the mean of its divisors is an integer number (11678728680).

Almost surely, 2^85644010254 is an apocalyptic number.

85644010254 is an abundant number, since it is smaller than the sum of its proper divisors (101215648626).

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

85644010254 is a wasteful number, since it uses less digits than its factorization.

85644010254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297636535.

The product of its (nonzero) digits is 153600, while the sum is 39.

The spelling of 85644010254 in words is "eighty-five billion, six hundred forty-four million, ten thousand, two hundred fifty-four".