7000780385 has 16 divisors (see below), whose sum is σ = 8475881472. Its totient is φ = 5550753600.

The previous prime is 7000780363. The next prime is 7000780403. The reversal of 7000780385 is 5830870007.

It is not a de Polignac number, because 7000780385 - 2¹⁶ = 7000714849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 668540 + ... + 678930.

It is an arithmetic number, because the mean of its divisors is an integer number (529742592).

Almost surely, 2^7000780385 is an apocalyptic number.

It is an amenable number.

7000780385 is a deficient number, since it is larger than the sum of its proper divisors (1475101087).

7000780385 is a wasteful number, since it uses less digits than its factorization.

7000780385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11584.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 7000780385 is about 83670.6662158250. Note that the first 3 decimals coincide. The cubic root of 7000780385 is about 1913.0022669309.

The spelling of 7000780385 in words is "seven billion, seven hundred eighty thousand, three hundred eighty-five".