5693945281 has 4 divisors (see below), whose sum is σ = 5847835732. Its totient is φ = 5540054832.

The previous prime is 5693945267. The next prime is 5693945317. The reversal of 5693945281 is 1825493965.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1825493965 = 5 ⋅365098793.

It can be written as a sum of positive squares in 2 ways, for example, as 3448038400 + 2245906881 = 58720^2 + 47391^2 .

It is a cyclic number.

It is not a de Polignac number, because 5693945281 - 2⁵ = 5693945249 is a prime.

It is a super-2 number, since 2×5693945281² = 64842025726044337922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5693945381) 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, 76945170 + ... + 76945243.

It is an arithmetic number, because the mean of its divisors is an integer number (1461958933).

Almost surely, 2^5693945281 is an apocalyptic number.

It is an amenable number.

5693945281 is a deficient number, since it is larger than the sum of its proper divisors (153890451).

5693945281 is a wasteful number, since it uses less digits than its factorization.

5693945281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153890450.

The product of its digits is 2332800, while the sum is 52.

The square root of 5693945281 is about 75458.2353424727. The cubic root of 5693945281 is about 1785.6832699780.

The spelling of 5693945281 in words is "five billion, six hundred ninety-three million, nine hundred forty-five thousand, two hundred eighty-one".