38719046081 has 4 divisors (see below), whose sum is σ = 38752339632. Its totient is φ = 38685752532.

The previous prime is 38719046063. The next prime is 38719046083. The reversal of 38719046081 is 18064091783.

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, and also an emirpimes, since its reverse is a distinct semiprime: 18064091783 = 1381 ⋅13080443.

It is a cyclic number.

It is not a de Polignac number, because 38719046081 - 2¹⁴ = 38719029697 is a prime.

It is a super-2 number, since 2×38719046081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38719046083) 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, 16645031 + ... + 16647356.

It is an arithmetic number, because the mean of its divisors is an integer number (9688084908).

Almost surely, 2^38719046081 is an apocalyptic number.

It is an amenable number.

38719046081 is a deficient number, since it is larger than the sum of its proper divisors (33293551).

38719046081 is a wasteful number, since it uses less digits than its factorization.

38719046081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33293550.

The product of its (nonzero) digits is 290304, while the sum is 47.

The spelling of 38719046081 in words is "thirty-eight billion, seven hundred nineteen million, forty-six thousand, eighty-one".