2865620023 has 6 divisors (see below), whose sum is σ = 3275156184. Its totient is φ = 2456124336.

The previous prime is 2865619987. The next prime is 2865620027. The reversal of 2865620023 is 3200265682.

It is not a de Polignac number, because 2865620023 - 2¹³ = 2865611831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2865620027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131515 + ... + 151747.

It is an arithmetic number, because the mean of its divisors is an integer number (545859364).

Almost surely, 2^2865620023 is an apocalyptic number.

2865620023 is a deficient number, since it is larger than the sum of its proper divisors (409536161).

2865620023 is an frugal number, since it uses more digits than its factorization.

2865620023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40473 (or 20240 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 2865620023 is about 53531.4862767699. The cubic root of 2865620023 is about 1420.3854047107.

The spelling of 2865620023 in words is "two billion, eight hundred sixty-five million, six hundred twenty thousand, twenty-three".