4026520261 has 8 divisors (see below), whose sum is σ = 4487762880. Its totient is φ = 3590209728.

The previous prime is 4026520249. The next prime is 4026520279. The reversal of 4026520261 is 1620256204.

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 4026520261 - 2⁵ = 4026520229 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 (4026520291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6232681 + ... + 6233326.

It is an arithmetic number, because the mean of its divisors is an integer number (560970360).

Almost surely, 2^4026520261 is an apocalyptic number.

It is an amenable number.

4026520261 is a deficient number, since it is larger than the sum of its proper divisors (461242619).

4026520261 is a wasteful number, since it uses less digits than its factorization.

4026520261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12466043.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 4026520261 is about 63454.8679062529. The cubic root of 4026520261 is about 1590.9015180731.

Adding to 4026520261 its reverse (1620256204), we get a palindrome (5646776465).

The spelling of 4026520261 in words is "four billion, twenty-six million, five hundred twenty thousand, two hundred sixty-one".