38444315953 has 4 divisors (see below), whose sum is σ = 38455764480. Its totient is φ = 38432867428.

The previous prime is 38444315951. The next prime is 38444315983. The reversal of 38444315953 is 35951344483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38444315953 - 2¹ = 38444315951 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38444315897 and 38444315906.

It is not an unprimeable number, because it can be changed into a prime (38444315951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5719225 + ... + 5725942.

It is an arithmetic number, because the mean of its divisors is an integer number (9613941120).

Almost surely, 2^38444315953 is an apocalyptic number.

It is an amenable number.

38444315953 is a deficient number, since it is larger than the sum of its proper divisors (11448527).

38444315953 is a wasteful number, since it uses less digits than its factorization.

38444315953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11448526.

The product of its digits is 3110400, while the sum is 49.

The spelling of 38444315953 in words is "thirty-eight billion, four hundred forty-four million, three hundred fifteen thousand, nine hundred fifty-three".