85348915591 has 16 divisors (see below), whose sum is σ = 93774470400. Its totient is φ = 77318765568.

The previous prime is 85348915573. The next prime is 85348915601. The reversal of 85348915591 is 19551984358.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 85348915591 - 2²¹ = 85346818439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85348915291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1572295 + ... + 1625671.

It is an arithmetic number, because the mean of its divisors is an integer number (5860904400).

Almost surely, 2^85348915591 is an apocalyptic number.

85348915591 is a deficient number, since it is larger than the sum of its proper divisors (8425554809).

85348915591 is a wasteful number, since it uses less digits than its factorization.

85348915591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57078.

The product of its digits is 7776000, while the sum is 58.

The spelling of 85348915591 in words is "eighty-five billion, three hundred forty-eight million, nine hundred fifteen thousand, five hundred ninety-one".