2643662031 has 8 divisors (see below), whose sum is σ = 3536217984. Its totient is φ = 1756773720.

The previous prime is 2643662023. The next prime is 2643662041. The reversal of 2643662031 is 1302663462.

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

It is not a de Polignac number, because 2643662031 - 2³ = 2643662023 is a prime.

It is a super-2 number, since 2×2643662031² = 13977897868302089922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2643661983 and 2643662001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643662041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1415821 + ... + 1417686.

It is an arithmetic number, because the mean of its divisors is an integer number (442027248).

Almost surely, 2^2643662031 is an apocalyptic number.

2643662031 is a deficient number, since it is larger than the sum of its proper divisors (892555953).

2643662031 is a wasteful number, since it uses less digits than its factorization.

2643662031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833821.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 2643662031 is about 51416.5540560625. The cubic root of 2643662031 is about 1382.7233958024.

The spelling of 2643662031 in words is "two billion, six hundred forty-three million, six hundred sixty-two thousand, thirty-one".