4246642061 has 4 divisors (see below), whose sum is σ = 4288688124. Its totient is φ = 4204596000.

The previous prime is 4246642021. The next prime is 4246642073. The reversal of 4246642061 is 1602466424.

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 4090242025 + 156400036 = 63955^2 + 12506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4246642061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4246642021) 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, 21022880 + ... + 21023081.

It is an arithmetic number, because the mean of its divisors is an integer number (1072172031).

Almost surely, 2^4246642061 is an apocalyptic number.

It is an amenable number.

4246642061 is a deficient number, since it is larger than the sum of its proper divisors (42046063).

4246642061 is a wasteful number, since it uses less digits than its factorization.

4246642061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42046062.

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 4246642061 is about 65166.2647464161. The cubic root of 4246642061 is about 1619.3791835762.

The spelling of 4246642061 in words is "four billion, two hundred forty-six million, six hundred forty-two thousand, sixty-one".