4026643501 has 4 divisors (see below), whose sum is σ = 4029060672. Its totient is φ = 4024226332.

The previous prime is 4026643499. The next prime is 4026643507. The reversal of 4026643501 is 1053466204.

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 4026643501 - 2¹ = 4026643499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4026643507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1206085 + ... + 1209418.

It is an arithmetic number, because the mean of its divisors is an integer number (1007265168).

Almost surely, 2^4026643501 is an apocalyptic number.

It is an amenable number.

4026643501 is a deficient number, since it is larger than the sum of its proper divisors (2417171).

4026643501 is a wasteful number, since it uses less digits than its factorization.

4026643501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2417170.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 4026643501 is about 63455.8389827130. The cubic root of 4026643501 is about 1590.9177488539.

The spelling of 4026643501 in words is "four billion, twenty-six million, six hundred forty-three thousand, five hundred one".