85830490557 has 24 divisors (see below), whose sum is σ = 147848797824. Its totient is φ = 46913559264.

The previous prime is 85830490507. The next prime is 85830490567. The reversal of 85830490557 is 75509403858.

85830490557 is a `hidden beast` number, since 8 + 5 + 83 + 0 + 4 + 9 + 0 + 557 = 666.

It is not a de Polignac number, because 85830490557 - 2⁷ = 85830490429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85830490507) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29615698 + ... + 29618595.

It is an arithmetic number, because the mean of its divisors is an integer number (6160366576).

Almost surely, 2^85830490557 is an apocalyptic number.

It is an amenable number.

85830490557 is a deficient number, since it is larger than the sum of its proper divisors (62018307267).

85830490557 is a wasteful number, since it uses less digits than its factorization.

85830490557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59234329 (or 59234326 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 85830490557 in words is "eighty-five billion, eight hundred thirty million, four hundred ninety thousand, five hundred fifty-seven".