83915273238784 has 81 divisors (see below), whose sum is σ = 181382838598899. Its totient is φ = 38729246699520.

The previous prime is 83915273238721. The next prime is 83915273238799. The reversal of 83915273238784 is 48783237251938.

The square root of 83915273238784 is 9160528.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 9129583110400 + 74785690128384 = 3021520^2 + 8647872^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1905367804 + ... + 1905411844.

Almost surely, 2^{83915273238784} is an apocalyptic number.

83915273238784 is the 9160528-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83915273238784

83915273238784 is an abundant number, since it is smaller than the sum of its proper divisors (97467565360115).

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

83915273238784 is an frugal number, since it uses more digits than its factorization.

83915273238784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88124 (or 44056 counting only the distinct ones).

The product of its digits is 487710720, while the sum is 70.

The spelling of 83915273238784 in words is "eighty-three trillion, nine hundred fifteen billion, two hundred seventy-three million, two hundred thirty-eight thousand, seven hundred eighty-four".