38263546644 has 72 divisors (see below), whose sum is σ = 94450204800. Its totient is φ = 12054728448.

The previous prime is 38263546639. The next prime is 38263546661. The reversal of 38263546644 is 44664536283.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1865557 + ... + 1885955.

It is an arithmetic number, because the mean of its divisors is an integer number (1311808400).

Almost surely, 2^38263546644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38263546644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47225102400).

38263546644 is an abundant number, since it is smaller than the sum of its proper divisors (56186658156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38263546644 is a wasteful number, since it uses less digits than its factorization.

38263546644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20877 (or 20856 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 51.

The spelling of 38263546644 in words is "thirty-eight billion, two hundred sixty-three million, five hundred forty-six thousand, six hundred forty-four".