85471035045639 has 32 divisors (see below), whose sum is σ = 116753167300608. Its totient is φ = 55601683200000.

The previous prime is 85471035045607. The next prime is 85471035045679. The reversal of 85471035045639 is 93654053017458.

It is a happy number.

It is not a de Polignac number, because 85471035045639 - 2⁵ = 85471035045607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85471035045679) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58503714 + ... + 59946864.

It is an arithmetic number, because the mean of its divisors is an integer number (3648536478144).

Almost surely, 2^{85471035045639} is an apocalyptic number.

85471035045639 is a deficient number, since it is larger than the sum of its proper divisors (31282132254969).

85471035045639 is a wasteful number, since it uses less digits than its factorization.

85471035045639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446079.

The product of its (nonzero) digits is 54432000, while the sum is 60.

The spelling of 85471035045639 in words is "eighty-five trillion, four hundred seventy-one billion, thirty-five million, forty-five thousand, six hundred thirty-nine".