83771821274 has 16 divisors (see below), whose sum is σ = 126700728000. Its totient is φ = 41539617504.

The previous prime is 83771821261. The next prime is 83771821283. The reversal of 83771821274 is 47212817738.

It is a happy 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, 220619 + ... + 464990.

It is an arithmetic number, because the mean of its divisors is an integer number (7918795500).

Almost surely, 2^83771821274 is an apocalyptic number.

83771821274 is a deficient number, since it is larger than the sum of its proper divisors (42928906726).

83771821274 is a wasteful number, since it uses less digits than its factorization.

83771821274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686117.

The product of its digits is 1053696, while the sum is 50.

The spelling of 83771821274 in words is "eighty-three billion, seven hundred seventy-one million, eight hundred twenty-one thousand, two hundred seventy-four".