38406746773 has 4 divisors (see below), whose sum is σ = 38407604620. Its totient is φ = 38405888928.

The previous prime is 38406746753. The next prime is 38406746801. The reversal of 38406746773 is 37764760483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 37764760483 = 17 ⋅2221456499.

It can be written as a sum of positive squares in 2 ways, for example, as 1139602564 + 37267144209 = 33758^2 + 193047^2 .

It is a cyclic number.

It is not a de Polignac number, because 38406746773 - 2²⁹ = 37869875861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38406746713) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 357840 + ... + 452617.

It is an arithmetic number, because the mean of its divisors is an integer number (9601901155).

Almost surely, 2^38406746773 is an apocalyptic number.

It is an amenable number.

38406746773 is a deficient number, since it is larger than the sum of its proper divisors (857847).

38406746773 is an equidigital number, since it uses as much as digits as its factorization.

38406746773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857846.

The product of its (nonzero) digits is 14224896, while the sum is 55.

The spelling of 38406746773 in words is "thirty-eight billion, four hundred six million, seven hundred forty-six thousand, seven hundred seventy-three".