85739428455 has 16 divisors (see below), whose sum is σ = 137279523840. Its totient is φ = 45695549088.

The previous prime is 85739428433. The next prime is 85739428483. The reversal of 85739428455 is 55482493758.

It is not a de Polignac number, because 85739428455 - 2¹⁸ = 85739166311 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1987075 + ... + 2029764.

It is an arithmetic number, because the mean of its divisors is an integer number (8579970240).

Almost surely, 2^85739428455 is an apocalyptic number.

85739428455 is a deficient number, since it is larger than the sum of its proper divisors (51540095385).

85739428455 is a wasteful number, since it uses less digits than its factorization.

85739428455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018270.

The product of its digits is 48384000, while the sum is 60.

The spelling of 85739428455 in words is "eighty-five billion, seven hundred thirty-nine million, four hundred twenty-eight thousand, four hundred fifty-five".