828531427381 has 8 divisors (see below), whose sum is σ = 946900230080. Its totient is φ = 710164417248.

The previous prime is 828531427357. The next prime is 828531427393. The reversal of 828531427381 is 183724135828.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 828531427381 - 2⁵ = 828531427349 is a prime.

It is a super-2 number, since 2×828531427381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828531427301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 759130 + ... + 1494436.

It is an arithmetic number, because the mean of its divisors is an integer number (118362528760).

Almost surely, 2^828531427381 is an apocalyptic number.

It is an amenable number.

828531427381 is a deficient number, since it is larger than the sum of its proper divisors (118368802699).

828531427381 is a wasteful number, since it uses less digits than its factorization.

828531427381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896283.

The product of its digits is 2580480, while the sum is 52.

The spelling of 828531427381 in words is "eight hundred twenty-eight billion, five hundred thirty-one million, four hundred twenty-seven thousand, three hundred eighty-one".