85154535461 has 4 divisors (see below), whose sum is σ = 88856906592. Its totient is φ = 81452164332.

The previous prime is 85154535443. The next prime is 85154535493. The reversal of 85154535461 is 16453545158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16453545158 = 2 ⋅8226772579.

It is a cyclic number.

It is not a de Polignac number, because 85154535461 - 2³⁰ = 84080793637 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 (85154534461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1851185531 + ... + 1851185576.

It is an arithmetic number, because the mean of its divisors is an integer number (22214226648).

Almost surely, 2^85154535461 is an apocalyptic number.

It is an amenable number.

85154535461 is a deficient number, since it is larger than the sum of its proper divisors (3702371131).

85154535461 is a wasteful number, since it uses less digits than its factorization.

85154535461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3702371130.

The product of its digits is 1440000, while the sum is 47.

The spelling of 85154535461 in words is "eighty-five billion, one hundred fifty-four million, five hundred thirty-five thousand, four hundred sixty-one".