83438981974 has 8 divisors (see below), whose sum is σ = 125160483888. Its totient is φ = 41718820680.

The previous prime is 83438981971. The next prime is 83438981993. The reversal of 83438981974 is 47918983438.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83438981971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161577 + ... + 439300.

It is an arithmetic number, because the mean of its divisors is an integer number (15645060486).

Almost surely, 2^83438981974 is an apocalyptic number.

83438981974 is a deficient number, since it is larger than the sum of its proper divisors (41721501914).

83438981974 is a wasteful number, since it uses less digits than its factorization.

83438981974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670310.

The product of its digits is 41803776, while the sum is 64.

The spelling of 83438981974 in words is "eighty-three billion, four hundred thirty-eight million, nine hundred eighty-one thousand, nine hundred seventy-four".