38446728734 has 4 divisors (see below), whose sum is σ = 57670093104. Its totient is φ = 19223364366.

The previous prime is 38446728713. The next prime is 38446728763. The reversal of 38446728734 is 43782764483.

38446728734 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: 43782764483 = 37 ⋅1183317959.

It is a self number, because there is not a number n which added to its sum of digits gives 38446728734.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9611682182 + ... + 9611682185.

It is an arithmetic number, because the mean of its divisors is an integer number (14417523276).

Almost surely, 2^38446728734 is an apocalyptic number.

38446728734 is a deficient number, since it is larger than the sum of its proper divisors (19223364370).

38446728734 is a wasteful number, since it uses less digits than its factorization.

38446728734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19223364369.

The product of its digits is 21676032, while the sum is 56.

The spelling of 38446728734 in words is "thirty-eight billion, four hundred forty-six million, seven hundred twenty-eight thousand, seven hundred thirty-four".