2865404650 has 24 divisors (see below), whose sum is σ = 5343976044. Its totient is φ = 1143081600.

The previous prime is 2865404639. The next prime is 2865404651. The reversal of 2865404650 is 564045682.

It can be written as a sum of positive squares in 6 ways, for example, as 1474636801 + 1390767849 = 38401^2 + 37293^2 .

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2865404651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58171 + ... + 95470.

Almost surely, 2^2865404650 is an apocalyptic number.

2865404650 is a deficient number, since it is larger than the sum of its proper divisors (2478571394).

2865404650 is a wasteful number, since it uses less digits than its factorization.

2865404650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154026 (or 154021 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 40.

The square root of 2865404650 is about 53529.4745911073. The cubic root of 2865404650 is about 1420.3498195869.

The spelling of 2865404650 in words is "two billion, eight hundred sixty-five million, four hundred four thousand, six hundred fifty".