383793040538 has 4 divisors (see below), whose sum is σ = 575689560810. Its totient is φ = 191896520268.

The previous prime is 383793040513. The next prime is 383793040549. The reversal of 383793040538 is 835040397383.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 835040397383 = 689021 ⋅1211923.

It can be written as a sum of positive squares in only one way, i.e., 326775719449 + 57017321089 = 571643^2 + 238783^2 .

It is a super-2 number, since 2×383793040538² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 383793040538.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95948260133 + ... + 95948260136.

Almost surely, 2^383793040538 is an apocalyptic number.

383793040538 is a deficient number, since it is larger than the sum of its proper divisors (191896520272).

383793040538 is a wasteful number, since it uses less digits than its factorization.

383793040538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191896520271.

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 383793040538 in words is "three hundred eighty-three billion, seven hundred ninety-three million, forty thousand, five hundred thirty-eight".