785000000001 has 8 divisors (see below), whose sum is σ = 1196190476224. Its totient is φ = 448571428560.

The previous prime is 784999999967. The next prime is 785000000011. The reversal of 785000000001 is 100000000587.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 785000000001 - 2⁶ = 784999999937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 37380952381 = 785000000001 / (7 + 8 + 5 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (785000000011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18690476170 + ... + 18690476211.

It is an arithmetic number, because the mean of its divisors is an integer number (149523809528).

Almost surely, 2^785000000001 is an apocalyptic number.

It is an amenable number.

785000000001 is a deficient number, since it is larger than the sum of its proper divisors (411190476223).

785000000001 is a wasteful number, since it uses less digits than its factorization.

785000000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37380952391.

The product of its (nonzero) digits is 280, while the sum is 21.

Adding to 785000000001 its reverse (100000000587), we get a palindrome (885000000588).

The spelling of 785000000001 in words is "seven hundred eighty-five billion, one", and thus it is an aban number.