7889616001 has 4 divisors (see below), whose sum is σ = 7889799492. Its totient is φ = 7889432512.

The previous prime is 7889615999. The next prime is 7889616023. The reversal of 7889616001 is 1006169887.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6121497600 + 1768118401 = 78240^2 + 42049^2 .

It is a cyclic number.

It is not a de Polignac number, because 7889616001 - 2¹ = 7889615999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7889614001) 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, 11421 + ... + 126133.

It is an arithmetic number, because the mean of its divisors is an integer number (1972449873).

Almost surely, 2^7889616001 is an apocalyptic number.

It is an amenable number.

7889616001 is a deficient number, since it is larger than the sum of its proper divisors (183491).

7889616001 is a wasteful number, since it uses less digits than its factorization.

7889616001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183490.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 7889616001 is about 88823.5104068737. The cubic root of 7889616001 is about 1990.7586983572.

The spelling of 7889616001 in words is "seven billion, eight hundred eighty-nine million, six hundred sixteen thousand, one".