5634614781 has 6 divisors (see below), whose sum is σ = 8138888030. Its totient is φ = 3756409848.

The previous prime is 5634614771. The next prime is 5634614803. The reversal of 5634614781 is 1874164365.

5634614781 is a `hidden beast` number, since 5 + 634 + 6 + 1 + 4 + 7 + 8 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4053359556 + 1581255225 = 63666^2 + 39765^2 .

It is not a de Polignac number, because 5634614781 - 2¹¹ = 5634612733 is a prime.

It is a super-2 number, since 2×5634614781² = 63497767460527355922, 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 (5634614701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 313034146 + ... + 313034163.

Almost surely, 2^5634614781 is an apocalyptic number.

It is an amenable number.

5634614781 is a deficient number, since it is larger than the sum of its proper divisors (2504273249).

5634614781 is a wasteful number, since it uses less digits than its factorization.

5634614781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626068315 (or 626068312 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 5634614781 is about 75064.0711725656. The cubic root of 5634614781 is about 1779.4593717532.

The spelling of 5634614781 in words is "five billion, six hundred thirty-four million, six hundred fourteen thousand, seven hundred eighty-one".