4252612781 has 32 divisors (see below), whose sum is σ = 4716361728. Its totient is φ = 3818014720.

The previous prime is 4252612769. The next prime is 4252612789. The reversal of 4252612781 is 1872162524.

It is a cyclic number.

It is not a de Polignac number, because 4252612781 - 2⁶ = 4252612717 is a prime.

It is a super-2 number, since 2×4252612781² = 36169430930249107922, which contains 22 as substring.

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 (4252612789) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9866636 + ... + 9867066.

It is an arithmetic number, because the mean of its divisors is an integer number (147386304).

Almost surely, 2^4252612781 is an apocalyptic number.

It is an amenable number.

4252612781 is a deficient number, since it is larger than the sum of its proper divisors (463748947).

4252612781 is a wasteful number, since it uses less digits than its factorization.

4252612781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781.

The product of its digits is 53760, while the sum is 38.

The square root of 4252612781 is about 65212.0600886063. The cubic root of 4252612781 is about 1620.1377697445.

The spelling of 4252612781 in words is "four billion, two hundred fifty-two million, six hundred twelve thousand, seven hundred eighty-one".