857458980000 has 960 divisors, whose sum is σ = 3759896448000. Its totient is φ = 185659776000.

The previous prime is 857458979969. The next prime is 857458980017. The reversal of 857458980000 is 89854758.

857458980000 is a `hidden beast` number, since 8 + 57 + 4 + 589 + 8 + 0 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 71814031 + ... + 71825969.

It is an arithmetic number, because the mean of its divisors is an integer number (3916558800).

Almost surely, 2^857458980000 is an apocalyptic number.

857458980000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 857458980000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1879948224000).

857458980000 is an abundant number, since it is smaller than the sum of its proper divisors (2902437468000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

857458980000 is a wasteful number, since it uses less digits than its factorization.

857458980000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12004 (or 11975 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 857458980000 in words is "eight hundred fifty-seven billion, four hundred fifty-eight million, nine hundred eighty thousand".