2865687972 has 36 divisors (see below), whose sum is σ = 7778297520. Its totient is φ = 818767824.

The previous prime is 2865687971. The next prime is 2865687991. The reversal of 2865687972 is 2797865682.

It is not an unprimeable number, because it can be changed into a prime (2865687971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2436222 + ... + 2437397.

It is an arithmetic number, because the mean of its divisors is an integer number (216063820).

Almost surely, 2^2865687972 is an apocalyptic number.

It is an amenable number.

2865687972 is an abundant number, since it is smaller than the sum of its proper divisors (4912609548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2865687972 is a wasteful number, since it uses less digits than its factorization.

2865687972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4873640 (or 4873631 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 60.

The square root of 2865687972 is about 53532.1209368730. The cubic root of 2865687972 is about 1420.3966312521.

The spelling of 2865687972 in words is "two billion, eight hundred sixty-five million, six hundred eighty-seven thousand, nine hundred seventy-two".