3618806847 has 48 divisors (see below), whose sum is σ = 5340915840. Its totient is φ = 2176409088.

The previous prime is 3618806819. The next prime is 3618806897. The reversal of 3618806847 is 7486088163.

It is not a de Polignac number, because 3618806847 - 2²⁸ = 3350371391 is a prime.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 3618806847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3618806897) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4097868 + ... + 4098750.

It is an arithmetic number, because the mean of its divisors is an integer number (111269080).

Almost surely, 2^3618806847 is an apocalyptic number.

3618806847 is a deficient number, since it is larger than the sum of its proper divisors (1722108993).

3618806847 is a wasteful number, since it uses less digits than its factorization.

3618806847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112 (or 1095 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 51.

The square root of 3618806847 is about 60156.5195718635. The cubic root of 3618806847 is about 1535.2830944868.

The spelling of 3618806847 in words is "three billion, six hundred eighteen million, eight hundred six thousand, eight hundred forty-seven".