1979193158244 has 27 divisors (see below), whose sum is σ = 5002981820473. Its totient is φ = 659728239072.

The previous prime is 1979193158227. The next prime is 1979193158311. The reversal of 1979193158244 is 4428513919791.

The square root of 1979193158244 is 1406838.

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

1979193158244 is a `hidden beast` number, since 1 + 9 + 7 + 9 + 1 + 9 + 3 + 1 + 582 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1464656652900 + 514536505344 = 1210230^2 + 717312^2 .

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, 8323792 + ... + 8558264.

Almost surely, 2^{1979193158244} is an apocalyptic number.

1979193158244 is the 1406838-th square number.

It is an amenable number.

1979193158244 is an abundant number, since it is smaller than the sum of its proper divisors (3023788662229).

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

1979193158244 is an frugal number, since it uses more digits than its factorization.

1979193158244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468956 (or 234478 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The spelling of 1979193158244 in words is "one trillion, nine hundred seventy-nine billion, one hundred ninety-three million, one hundred fifty-eight thousand, two hundred forty-four".