4642539651 has 16 divisors (see below), whose sum is σ = 6896290720. Its totient is φ = 3086722080.

The previous prime is 4642539641. The next prime is 4642539661. The reversal of 4642539651 is 1569352464.

4642539651 is a `hidden beast` number, since 4 + 64 + 2 + 539 + 6 + 51 = 666.

4642539651 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (4642539641) and next prime (4642539661).

It is not a de Polignac number, because 4642539651 - 2⁵ = 4642539619 is a prime.

It is a super-3 number, since 3×4642539651³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4642539597 and 4642539606.

It is not an unprimeable number, because it can be changed into a prime (4642539631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220420 + ... + 240561.

It is an arithmetic number, because the mean of its divisors is an integer number (431018170).

Almost surely, 2^4642539651 is an apocalyptic number.

4642539651 is a deficient number, since it is larger than the sum of its proper divisors (2253751069).

4642539651 is a wasteful number, since it uses less digits than its factorization.

4642539651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461363 (or 461357 counting only the distinct ones).

The product of its digits is 777600, while the sum is 45.

The square root of 4642539651 is about 68136.1845937971. The cubic root of 4642539651 is about 1668.2144314407.

The spelling of 4642539651 in words is "four billion, six hundred forty-two million, five hundred thirty-nine thousand, six hundred fifty-one".