5398722061 has 4 divisors (see below), whose sum is σ = 5399487324. Its totient is φ = 5397956800.

The previous prime is 5398722019. The next prime is 5398722067. The reversal of 5398722061 is 1602278935.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1602278935 = 5 ⋅320455787.

It can be written as a sum of positive squares in 2 ways, for example, as 1339120836 + 4059601225 = 36594^2 + 63715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5398722061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5398721999 and 5398722017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5398722067) 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, 371950 + ... + 386191.

It is an arithmetic number, because the mean of its divisors is an integer number (1349871831).

Almost surely, 2^5398722061 is an apocalyptic number.

It is an amenable number.

5398722061 is a deficient number, since it is larger than the sum of its proper divisors (765263).

5398722061 is an equidigital number, since it uses as much as digits as its factorization.

5398722061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765262.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 5398722061 is about 73475.9964954542. The cubic root of 5398722061 is about 1754.2722351087.

The spelling of 5398722061 in words is "five billion, three hundred ninety-eight million, seven hundred twenty-two thousand, sixty-one".