2646531982 has 8 divisors (see below), whose sum is σ = 3971198952. Its totient is φ = 1322799000.

The previous prime is 2646531973. The next prime is 2646531991. The reversal of 2646531982 is 2891356462.

It is an interprime number because it is at equal distance from previous prime (2646531973) and next prime (2646531991).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226369 + ... + 237772.

It is an arithmetic number, because the mean of its divisors is an integer number (496399869).

Almost surely, 2^2646531982 is an apocalyptic number.

2646531982 is a deficient number, since it is larger than the sum of its proper divisors (1324666970).

2646531982 is a wasteful number, since it uses less digits than its factorization.

2646531982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466994.

The product of its digits is 622080, while the sum is 46.

The square root of 2646531982 is about 51444.4553086142. The cubic root of 2646531982 is about 1383.2235748725.

The spelling of 2646531982 in words is "two billion, six hundred forty-six million, five hundred thirty-one thousand, nine hundred eighty-two".