4251984819 has 8 divisors (see below), whose sum is σ = 5673930960. Its totient is φ = 2832347616.

The previous prime is 4251984817. The next prime is 4251984823. The reversal of 4251984819 is 9184891524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4251984819 - 2¹ = 4251984817 is a prime.

It is a super-2 number, since 2×4251984819² = 36158749802012925522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4251984811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572932 + ... + 580305.

It is an arithmetic number, because the mean of its divisors is an integer number (709241370).

Almost surely, 2^4251984819 is an apocalyptic number.

4251984819 is a deficient number, since it is larger than the sum of its proper divisors (1421946141).

4251984819 is a wasteful number, since it uses less digits than its factorization.

4251984819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154469.

The product of its digits is 829440, while the sum is 51.

The square root of 4251984819 is about 65207.2451419319. The cubic root of 4251984819 is about 1620.0580199461.

The spelling of 4251984819 in words is "four billion, two hundred fifty-one million, nine hundred eighty-four thousand, eight hundred nineteen".