2070865785 has 48 divisors (see below), whose sum is σ = 3459193920. Its totient is φ = 1057808640.

The previous prime is 2070865777. The next prime is 2070865799. The reversal of 2070865785 is 5875680702.

It is not a de Polignac number, because 2070865785 - 2³ = 2070865777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1752895 + ... + 1754075.

It is an arithmetic number, because the mean of its divisors is an integer number (72066540).

Almost surely, 2^2070865785 is an apocalyptic number.

It is an amenable number.

2070865785 is a deficient number, since it is larger than the sum of its proper divisors (1388328135).

2070865785 is a wasteful number, since it uses less digits than its factorization.

2070865785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386 (or 1357 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 48.

The square root of 2070865785 is about 45506.7663650143. The cubic root of 2070865785 is about 1274.6295548169.

The spelling of 2070865785 in words is "two billion, seventy million, eight hundred sixty-five thousand, seven hundred eighty-five".