83821259268 has 48 divisors (see below), whose sum is σ = 217331672320. Its totient is φ = 27938196000.

The previous prime is 83821259267. The next prime is 83821259293. The reversal of 83821259268 is 86295212838.

It is a happy number.

83821259268 is a `hidden beast` number, since 8 + 38 + 2 + 12 + 592 + 6 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (83821259261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1873398 + ... + 1917618.

Almost surely, 2^83821259268 is an apocalyptic number.

It is an amenable number.

83821259268 is an abundant number, since it is smaller than the sum of its proper divisors (133510413052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83821259268 is a wasteful number, since it uses less digits than its factorization.

83821259268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61785 (or 61777 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 54.

The spelling of 83821259268 in words is "eighty-three billion, eight hundred twenty-one million, two hundred fifty-nine thousand, two hundred sixty-eight".