83774355844 has 9 divisors (see below), whose sum is σ = 146606135767. Its totient is φ = 41886888484.

The previous prime is 83774355829. The next prime is 83774355857. The reversal of 83774355844 is 44855347738.

The square root of 83774355844 is 289438.

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

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 506517 + ... + 651235.

Almost surely, 2^83774355844 is an apocalyptic number.

83774355844 is the 289438-th square number.

It is an amenable number.

83774355844 is a deficient number, since it is larger than the sum of its proper divisors (62831779923).

83774355844 is an frugal number, since it uses more digits than its factorization.

83774355844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289442 (or 144721 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 58.

The spelling of 83774355844 in words is "eighty-three billion, seven hundred seventy-four million, three hundred fifty-five thousand, eight hundred forty-four".