52981663269 has 4 divisors (see below), whose sum is σ = 70642217696. Its totient is φ = 35321108844.

The previous prime is 52981663261. The next prime is 52981663279. The reversal of 52981663269 is 96236618925.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 52981663269 - 2³ = 52981663261 is a prime.

It is a super-2 number, since 2×52981663269² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52981663261) 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, 8830277209 + ... + 8830277214.

It is an arithmetic number, because the mean of its divisors is an integer number (17660554424).

Almost surely, 2^52981663269 is an apocalyptic number.

It is an amenable number.

52981663269 is a deficient number, since it is larger than the sum of its proper divisors (17660554427).

52981663269 is a wasteful number, since it uses less digits than its factorization.

52981663269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17660554426.

The product of its digits is 8398080, while the sum is 57.

The spelling of 52981663269 in words is "fifty-two billion, nine hundred eighty-one million, six hundred sixty-three thousand, two hundred sixty-nine".