7865049216 has 64 divisors (see below), whose sum is σ = 20901758400. Its totient is φ = 2620400640.

The previous prime is 7865049209. The next prime is 7865049239. The reversal of 7865049216 is 6129405687.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095045 + ... + 1102203.

It is an arithmetic number, because the mean of its divisors is an integer number (326589975).

Almost surely, 2^7865049216 is an apocalyptic number.

It is an amenable number.

7865049216 is an abundant number, since it is smaller than the sum of its proper divisors (13036709184).

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

7865049216 is a wasteful number, since it uses less digits than its factorization.

7865049216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10037 (or 10025 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 7865049216 is about 88685.1127078271. The cubic root of 7865049216 is about 1988.6902668538.

The spelling of 7865049216 in words is "seven billion, eight hundred sixty-five million, forty-nine thousand, two hundred sixteen".