83828199640 has 32 divisors (see below), whose sum is σ = 189862558560. Its totient is φ = 33309216000.

The previous prime is 83828199619. The next prime is 83828199661. The reversal of 83828199640 is 4699182838.

It is an interprime number because it is at equal distance from previous prime (83828199619) and next prime (83828199661).

It is a super-2 number, since 2×83828199640² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6933381 + ... + 6945460.

It is an arithmetic number, because the mean of its divisors is an integer number (5933204955).

Almost surely, 2^83828199640 is an apocalyptic number.

It is an amenable number.

83828199640 is an abundant number, since it is smaller than the sum of its proper divisors (106034358920).

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

83828199640 is a wasteful number, since it uses less digits than its factorization.

83828199640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13879003 (or 13878999 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 58.

The spelling of 83828199640 in words is "eighty-three billion, eight hundred twenty-eight million, one hundred ninety-nine thousand, six hundred forty".