38705351720500 has 24 divisors (see below), whose sum is σ = 84532488158664. Its totient is φ = 15482140688000.

The previous prime is 38705351720471. The next prime is 38705351720509. The reversal of 38705351720500 is 502715350783.

It can be written as a sum of positive squares in 4 ways, for example, as 4938235061796 + 33767116658704 = 2222214^2 + 5810948^2 .

It is a super-2 number, since 2×38705351720500² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38705351720509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38705351221 + ... + 38705352220.

It is an arithmetic number, because the mean of its divisors is an integer number (3522187006611).

Almost surely, 2^{38705351720500} is an apocalyptic number.

It is an amenable number.

38705351720500 is an abundant number, since it is smaller than the sum of its proper divisors (45827136438164).

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

38705351720500 is a wasteful number, since it uses less digits than its factorization.

38705351720500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77410703460 (or 77410703448 counting only the distinct ones).

The product of its (nonzero) digits is 882000, while the sum is 46.

The spelling of 38705351720500 in words is "thirty-eight trillion, seven hundred five billion, three hundred fifty-one million, seven hundred twenty thousand, five hundred".