5642102689 has 8 divisors (see below), whose sum is σ = 5704381800. Its totient is φ = 5580149376.

The previous prime is 5642102671. The next prime is 5642102693. The reversal of 5642102689 is 9862012465.

It can be written as a sum of positive squares in 4 ways, for example, as 3294225 + 5638808464 = 1815^2 + 75092^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 5642102689 - 2¹⁵ = 5642069921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5642102989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46542 + ... + 115975.

It is an arithmetic number, because the mean of its divisors is an integer number (713047725).

Almost surely, 2^5642102689 is an apocalyptic number.

It is an amenable number.

5642102689 is a deficient number, since it is larger than the sum of its proper divisors (62279111).

5642102689 is a wasteful number, since it uses less digits than its factorization.

5642102689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162899.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 5642102689 is about 75113.9313909211. The cubic root of 5642102689 is about 1780.2472712285.

The spelling of 5642102689 in words is "five billion, six hundred forty-two million, one hundred two thousand, six hundred eighty-nine".