2785500641 has 8 divisors (see below), whose sum is σ = 3472832064. Its totient is φ = 2170519920.

The previous prime is 2785500623. The next prime is 2785500659. The reversal of 2785500641 is 1460055872.

2785500641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2785500623) and next prime (2785500659).

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

It is a cyclic number.

It is not a de Polignac number, because 2785500641 - 2¹⁸ = 2785238497 is a prime.

It is a super-2 number, since 2×2785500641² = 15518027642022821762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2785500595 and 2785500604.

It is not an unprimeable number, because it can be changed into a prime (2785500041) 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, 18087590 + ... + 18087743.

It is an arithmetic number, because the mean of its divisors is an integer number (434104008).

Almost surely, 2^2785500641 is an apocalyptic number.

It is an amenable number.

2785500641 is a deficient number, since it is larger than the sum of its proper divisors (687331423).

2785500641 is a wasteful number, since it uses less digits than its factorization.

2785500641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36175351.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 2785500641 is about 52777.8423299020. The cubic root of 2785500641 is about 1407.0226464111.

The spelling of 2785500641 in words is "two billion, seven hundred eighty-five million, five hundred thousand, six hundred forty-one".