2085412578 has 32 divisors (see below), whose sum is σ = 4222342080. Its totient is φ = 686568960.

The previous prime is 2085412573. The next prime is 2085412613. The reversal of 2085412578 is 8752145802.

It is not an unprimeable number, because it can be changed into a prime (2085412573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691093 + ... + 694103.

It is an arithmetic number, because the mean of its divisors is an integer number (131948190).

Almost surely, 2^2085412578 is an apocalyptic number.

2085412578 is an abundant number, since it is smaller than the sum of its proper divisors (2136929502).

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

2085412578 is a wasteful number, since it uses less digits than its factorization.

2085412578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4402.

The product of its (nonzero) digits is 179200, while the sum is 42.

The square root of 2085412578 is about 45666.3177626574. The cubic root of 2085412578 is about 1277.6071379950.

The spelling of 2085412578 in words is "two billion, eighty-five million, four hundred twelve thousand, five hundred seventy-eight".