52419178331881 has 3 divisors (see below), whose sum is σ = 52419185571991. Its totient is φ = 52419171091772.

The previous prime is 52419178331879. The next prime is 52419178331911. The reversal of 52419178331881 is 18813387191425.

The square root of 52419178331881 is 7240109.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 35637210635481 + 16781967696400 = 5969691^2 + 4096580^2 .

It is not a de Polignac number, because 52419178331881 - 2¹ = 52419178331879 is a prime.

It is a super-2 number, since 2×52419178331881² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52419178331381) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3620055 + ... + 10860163.

Almost surely, 2^{52419178331881} is an apocalyptic number.

52419178331881 is the 7240109-th square number.

52419178331881 is the 3620055-th centered octagonal number.

It is an amenable number.

52419178331881 is a deficient number, since it is larger than the sum of its proper divisors (7240110).

52419178331881 is an frugal number, since it uses more digits than its factorization.

52419178331881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14480218 (or 7240109 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 61.

The spelling of 52419178331881 in words is "fifty-two trillion, four hundred nineteen billion, one hundred seventy-eight million, three hundred thirty-one thousand, eight hundred eighty-one".