4354563781 has 4 divisors (see below), whose sum is σ = 4472254732. Its totient is φ = 4236872832.

The previous prime is 4354563767. The next prime is 4354563791. The reversal of 4354563781 is 1873654534.

4354563781 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3010168225 + 1344395556 = 54865^2 + 36666^2 .

It is a cyclic number.

It is not a de Polignac number, because 4354563781 - 2³¹ = 2207080133 is a prime.

It is a super-2 number, since 2×4354563781² = 37924451445594031922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4354563761) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58845420 + ... + 58845493.

It is an arithmetic number, because the mean of its divisors is an integer number (1118063683).

Almost surely, 2^4354563781 is an apocalyptic number.

It is an amenable number.

4354563781 is a deficient number, since it is larger than the sum of its proper divisors (117690951).

4354563781 is a wasteful number, since it uses less digits than its factorization.

4354563781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117690950.

The product of its digits is 1209600, while the sum is 46.

The square root of 4354563781 is about 65989.1186560330. The cubic root of 4354563781 is about 1632.9825804601.

The spelling of 4354563781 in words is "four billion, three hundred fifty-four million, five hundred sixty-three thousand, seven hundred eighty-one".