85813290297 has 80 divisors (see below), whose sum is σ = 155948284800. Its totient is φ = 45932832000.

The previous prime is 85813290263. The next prime is 85813290301. The reversal of 85813290297 is 79209231858.

85813290297 is a `hidden beast` number, since 8 + 58 + 13 + 290 + 297 = 666.

It is not a de Polignac number, because 85813290297 - 2³² = 81518323001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85813290257) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 914047 + ... + 1003547.

It is an arithmetic number, because the mean of its divisors is an integer number (1949353560).

Almost surely, 2^85813290297 is an apocalyptic number.

It is an amenable number.

85813290297 is a deficient number, since it is larger than the sum of its proper divisors (70134994503).

85813290297 is a wasteful number, since it uses less digits than its factorization.

85813290297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89628 (or 89619 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 85813290297 in words is "eighty-five billion, eight hundred thirteen million, two hundred ninety thousand, two hundred ninety-seven".