2647965870 has 64 divisors (see below), whose sum is σ = 7703182080. Its totient is φ = 641930400.

The previous prime is 2647965863. The next prime is 2647965871. The reversal of 2647965870 is 785697462.

2647965870 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2647965871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 442816 + ... + 448755.

It is an arithmetic number, because the mean of its divisors is an integer number (120362220).

Almost surely, 2^2647965870 is an apocalyptic number.

2647965870 is an abundant number, since it is smaller than the sum of its proper divisors (5055216210).

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

2647965870 is a wasteful number, since it uses less digits than its factorization.

2647965870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 891598 (or 891592 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The square root of 2647965870 is about 51458.3896949759. The cubic root of 2647965870 is about 1383.4733394207.

The spelling of 2647965870 in words is "two billion, six hundred forty-seven million, nine hundred sixty-five thousand, eight hundred seventy".