2865540047 has 4 divisors (see below), whose sum is σ = 2865687456. Its totient is φ = 2865392640.

The previous prime is 2865540017. The next prime is 2865540071. The reversal of 2865540047 is 7400455682.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2865540047 - 2¹⁴ = 2865523663 is a prime.

It is a super-2 number, since 2×2865540047² = 16422639521921524418, 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 = 2865539986 and 2865540013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2865540017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39143 + ... + 85224.

It is an arithmetic number, because the mean of its divisors is an integer number (716421864).

Almost surely, 2^2865540047 is an apocalyptic number.

2865540047 is a deficient number, since it is larger than the sum of its proper divisors (147409).

2865540047 is a wasteful number, since it uses less digits than its factorization.

2865540047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147408.

The product of its (nonzero) digits is 268800, while the sum is 41.

The square root of 2865540047 is about 53530.7392719361. The cubic root of 2865540047 is about 1420.3721908397.

The spelling of 2865540047 in words is "two billion, eight hundred sixty-five million, five hundred forty thousand, forty-seven".