38194253534 has 4 divisors (see below), whose sum is σ = 57291380304. Its totient is φ = 19097126766.

The previous prime is 38194253533. The next prime is 38194253563. The reversal of 38194253534 is 43535249183.

38194253534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43535249183 = 23 ⋅1892836921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38194253533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9548563382 + ... + 9548563385.

It is an arithmetic number, because the mean of its divisors is an integer number (14322845076).

Almost surely, 2^38194253534 is an apocalyptic number.

38194253534 is a deficient number, since it is larger than the sum of its proper divisors (19097126770).

38194253534 is a wasteful number, since it uses less digits than its factorization.

38194253534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19097126769.

The product of its digits is 1555200, while the sum is 47.

The spelling of 38194253534 in words is "thirty-eight billion, one hundred ninety-four million, two hundred fifty-three thousand, five hundred thirty-four".