5437774781 has 2 divisors, whose sum is σ = 5437774782. Its totient is φ = 5437774780.

The previous prime is 5437774763. The next prime is 5437774799. The reversal of 5437774781 is 1874777345.

It is a balanced prime because it is at equal distance from previous prime (5437774763) and next prime (5437774799).

It can be written as a sum of positive squares in only one way, i.e., 5407249156 + 30525625 = 73534^2 + 5525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5437774781 is a prime.

It is a super-2 number, since 2×5437774781² = 59138789137759195922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5437774081) 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 as a sum of consecutive naturals, namely, 2718887390 + 2718887391.

It is an arithmetic number, because the mean of its divisors is an integer number (2718887391).

Almost surely, 2^5437774781 is an apocalyptic number.

It is an amenable number.

5437774781 is a deficient number, since it is larger than the sum of its proper divisors (1).

5437774781 is an equidigital number, since it uses as much as digits as its factorization.

5437774781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4609920, while the sum is 53.

The square root of 5437774781 is about 73741.2691849008. The cubic root of 5437774781 is about 1758.4920344697.

The spelling of 5437774781 in words is "five billion, four hundred thirty-seven million, seven hundred seventy-four thousand, seven hundred eighty-one".