38454791761 has 4 divisors (see below), whose sum is σ = 38455228224. Its totient is φ = 38454355300.

The previous prime is 38454791747. The next prime is 38454791819. The reversal of 38454791761 is 16719745483.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 38454791761 - 2¹³ = 38454783569 is a prime.

It is a super-2 number, since 2×38454791761² (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 (38454791731) 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, 34525 + ... + 279466.

It is an arithmetic number, because the mean of its divisors is an integer number (9613807056).

Almost surely, 2^38454791761 is an apocalyptic number.

It is an amenable number.

38454791761 is a deficient number, since it is larger than the sum of its proper divisors (436463).

38454791761 is a wasteful number, since it uses less digits than its factorization.

38454791761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436462.

The product of its digits is 5080320, while the sum is 55.

The spelling of 38454791761 in words is "thirty-eight billion, four hundred fifty-four million, seven hundred ninety-one thousand, seven hundred sixty-one".