85949498147 has 4 divisors (see below), whose sum is σ = 86269013280. Its totient is φ = 85629983016.

The previous prime is 85949498119. The next prime is 85949498153. The reversal of 85949498147 is 74189494958.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74189494958 = 2 ⋅37094747479.

It is a cyclic number.

It is not a de Polignac number, because 85949498147 - 2⁶ = 85949498083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85949468147) 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, 159757163 + ... + 159757700.

It is an arithmetic number, because the mean of its divisors is an integer number (21567253320).

Almost surely, 2^85949498147 is an apocalyptic number.

85949498147 is a deficient number, since it is larger than the sum of its proper divisors (319515133).

85949498147 is a wasteful number, since it uses less digits than its factorization.

85949498147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319515132.

The product of its digits is 104509440, while the sum is 68.

The spelling of 85949498147 in words is "eighty-five billion, nine hundred forty-nine million, four hundred ninety-eight thousand, one hundred forty-seven".