2647545983 has 4 divisors (see below), whose sum is σ = 2803284000. Its totient is φ = 2491807968.

The previous prime is 2647545977. The next prime is 2647545997. The reversal of 2647545983 is 3895457462.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2647545983 - 2⁸ = 2647545727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2647547983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77868983 + ... + 77869016.

It is an arithmetic number, because the mean of its divisors is an integer number (700821000).

Almost surely, 2^2647545983 is an apocalyptic number.

2647545983 is a deficient number, since it is larger than the sum of its proper divisors (155738017).

2647545983 is a wasteful number, since it uses less digits than its factorization.

2647545983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155738016.

The product of its digits is 7257600, while the sum is 53.

The square root of 2647545983 is about 51454.3096640116. The cubic root of 2647545983 is about 1383.4002099311.

The spelling of 2647545983 in words is "two billion, six hundred forty-seven million, five hundred forty-five thousand, nine hundred eighty-three".