5378764081 has 2 divisors, whose sum is σ = 5378764082. Its totient is φ = 5378764080.

The previous prime is 5378764049. The next prime is 5378764099. The reversal of 5378764081 is 1804678735.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4926776481 + 451987600 = 70191^2 + 21260^2 .

It is a cyclic number.

It is not a de Polignac number, because 5378764081 - 2⁵ = 5378764049 is a prime.

It is a super-2 number, since 2×5378764081² = 57862206078111549122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5378764381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2689382040 + 2689382041.

It is an arithmetic number, because the mean of its divisors is an integer number (2689382041).

Almost surely, 2^5378764081 is an apocalyptic number.

It is an amenable number.

5378764081 is a deficient number, since it is larger than the sum of its proper divisors (1).

5378764081 is an equidigital number, since it uses as much as digits as its factorization.

5378764081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The square root of 5378764081 is about 73340.0578197209. The cubic root of 5378764081 is about 1752.1078363017.

The spelling of 5378764081 in words is "five billion, three hundred seventy-eight million, seven hundred sixty-four thousand, eighty-one".