2643916801 has 4 divisors (see below), whose sum is σ = 2664099504. Its totient is φ = 2623734100.

The previous prime is 2643916799. The next prime is 2643916817. The reversal of 2643916801 is 1086193462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2643916801 - 2¹ = 2643916799 is a prime.

It is a super-2 number, since 2×2643916801² = 13980592101220147202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2643916601) 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, 10091155 + ... + 10091416.

It is an arithmetic number, because the mean of its divisors is an integer number (666024876).

Almost surely, 2^2643916801 is an apocalyptic number.

It is an amenable number.

2643916801 is a deficient number, since it is larger than the sum of its proper divisors (20182703).

2643916801 is a wasteful number, since it uses less digits than its factorization.

2643916801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20182702.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 2643916801 is about 51419.0315058539. The cubic root of 2643916801 is about 1382.7678121107.

The spelling of 2643916801 in words is "two billion, six hundred forty-three million, nine hundred sixteen thousand, eight hundred one".