5214432781 has 8 divisors (see below), whose sum is σ = 5240125440. Its totient is φ = 5188803792.

The previous prime is 5214432749. The next prime is 5214432791. The reversal of 5214432781 is 1872344125.

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 5214432781 - 2⁵ = 5214432749 is a prime.

It is a super-2 number, since 2×5214432781² = 54380618455134787922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5214432781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5214432721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152631 + ... + 183643.

It is an arithmetic number, because the mean of its divisors is an integer number (655015680).

Almost surely, 2^5214432781 is an apocalyptic number.

It is an amenable number.

5214432781 is a deficient number, since it is larger than the sum of its proper divisors (25692659).

5214432781 is a wasteful number, since it uses less digits than its factorization.

5214432781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31835.

The product of its digits is 53760, while the sum is 37.

The square root of 5214432781 is about 72211.0294968850. The cubic root of 5214432781 is about 1734.0795812335.

The spelling of 5214432781 in words is "five billion, two hundred fourteen million, four hundred thirty-two thousand, seven hundred eighty-one".