2663434642 has 64 divisors (see below), whose sum is σ = 4702924800. Its totient is φ = 1117876480.

The previous prime is 2663434637. The next prime is 2663434717. The reversal of 2663434642 is 2464343662.

It is a junction number, because it is equal to n+sod(n) for n = 2663434595 and 2663434604.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7418859 + ... + 7419217.

It is an arithmetic number, because the mean of its divisors is an integer number (73483200).

Almost surely, 2^2663434642 is an apocalyptic number.

2663434642 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2663434642 is a deficient number, since it is larger than the sum of its proper divisors (2039490158).

2663434642 is a wasteful number, since it uses less digits than its factorization.

2663434642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711.

The product of its digits is 497664, while the sum is 40.

The square root of 2663434642 is about 51608.4745172728. The cubic root of 2663434642 is about 1386.1620820246.

The spelling of 2663434642 in words is "two billion, six hundred sixty-three million, four hundred thirty-four thousand, six hundred forty-two".