2085458780 has 12 divisors (see below), whose sum is σ = 4379463480. Its totient is φ = 834183504.

The previous prime is 2085458779. The next prime is 2085458797. The reversal of 2085458780 is 878545802.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 52136450 + ... + 52136489.

It is an arithmetic number, because the mean of its divisors is an integer number (364955290).

Almost surely, 2^2085458780 is an apocalyptic number.

2085458780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2085458780 is an abundant number, since it is smaller than the sum of its proper divisors (2294004700).

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

2085458780 is a wasteful number, since it uses less digits than its factorization.

2085458780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104272948 (or 104272946 counting only the distinct ones).

The product of its (nonzero) digits is 716800, while the sum is 47.

The square root of 2085458780 is about 45666.8236250344. The cubic root of 2085458780 is about 1277.6165729895.

The spelling of 2085458780 in words is "two billion, eighty-five million, four hundred fifty-eight thousand, seven hundred eighty".