842793373738 has 4 divisors (see below), whose sum is σ = 1264190060610. Its totient is φ = 421396686868.

The previous prime is 842793373729. The next prime is 842793373759. The reversal of 842793373738 is 837373397248.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 753262560649 + 89530813089 = 867907^2 + 299217^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 842793373738.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210698343433 + ... + 210698343436.

Almost surely, 2^842793373738 is an apocalyptic number.

842793373738 is a deficient number, since it is larger than the sum of its proper divisors (421396686872).

842793373738 is a wasteful number, since it uses less digits than its factorization.

842793373738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421396686871.

The product of its digits is 128024064, while the sum is 64.

The spelling of 842793373738 in words is "eight hundred forty-two billion, seven hundred ninety-three million, three hundred seventy-three thousand, seven hundred thirty-eight".