83143694280 has 64 divisors (see below), whose sum is σ = 249534898560. Its totient is φ = 22162423808.

The previous prime is 83143694261. The next prime is 83143694281. The reversal of 83143694280 is 8249634138.

It is a super-2 number, since 2×83143694280² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (83143694281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147784 + ... + 433736.

It is an arithmetic number, because the mean of its divisors is an integer number (3898982790).

Almost surely, 2^83143694280 is an apocalyptic number.

It is an amenable number.

83143694280 is an abundant number, since it is smaller than the sum of its proper divisors (166391204280).

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

83143694280 is a wasteful number, since it uses less digits than its factorization.

83143694280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288390 (or 288386 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 83143694280 in words is "eighty-three billion, one hundred forty-three million, six hundred ninety-four thousand, two hundred eighty".