5394297861 has 12 divisors (see below), whose sum is σ = 7797423660. Its totient is φ = 3593586240.

The previous prime is 5394297833. The next prime is 5394297871. The reversal of 5394297861 is 1687924935.

5394297861 is a `hidden beast` number, since 539 + 4 + 29 + 7 + 86 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1722665025 + 3671632836 = 41505^2 + 60594^2 .

It is not a de Polignac number, because 5394297861 - 2¹⁰ = 5394296837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5394297798 and 5394297807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5394297871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204576 + ... + 229433.

It is an arithmetic number, because the mean of its divisors is an integer number (649785305).

Almost surely, 2^5394297861 is an apocalyptic number.

It is an amenable number.

5394297861 is a deficient number, since it is larger than the sum of its proper divisors (2403125799).

5394297861 is a wasteful number, since it uses less digits than its factorization.

5394297861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435396 (or 435393 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 5394297861 is about 73445.8838941979. The cubic root of 5394297861 is about 1753.7929011607.

The spelling of 5394297861 in words is "five billion, three hundred ninety-four million, two hundred ninety-seven thousand, eight hundred sixty-one".