527982394421 has 4 divisors (see below), whose sum is σ = 528207357312. Its totient is φ = 527757431532.

The previous prime is 527982394411. The next prime is 527982394439. The reversal of 527982394421 is 124493289725.

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 a cyclic number.

It is not a de Polignac number, because 527982394421 - 2¹⁰ = 527982393397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (527982394411) 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, 112477925 + ... + 112482618.

It is an arithmetic number, because the mean of its divisors is an integer number (132051839328).

Almost surely, 2^527982394421 is an apocalyptic number.

It is an amenable number.

527982394421 is a deficient number, since it is larger than the sum of its proper divisors (224962891).

527982394421 is a wasteful number, since it uses less digits than its factorization.

527982394421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224962890.

The product of its digits is 8709120, while the sum is 56.

The spelling of 527982394421 in words is "five hundred twenty-seven billion, nine hundred eighty-two million, three hundred ninety-four thousand, four hundred twenty-one".