38532806638881 has 4 divisors (see below), whose sum is σ = 51377075518512. Its totient is φ = 25688537759252.

The previous prime is 38532806638877. The next prime is 38532806638883. The reversal of 38532806638881 is 18883660823583.

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.

It is a cyclic number.

It is not a de Polignac number, because 38532806638881 - 2² = 38532806638877 is a prime.

It is a super-2 number, since 2×38532806638881² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38532806638883) 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, 6422134439811 + ... + 6422134439816.

It is an arithmetic number, because the mean of its divisors is an integer number (12844268879628).

Almost surely, 2^{38532806638881} is an apocalyptic number.

It is an amenable number.

38532806638881 is a deficient number, since it is larger than the sum of its proper divisors (12844268879631).

38532806638881 is a wasteful number, since it uses less digits than its factorization.

38532806638881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12844268879630.

The product of its (nonzero) digits is 318504960, while the sum is 69.

The spelling of 38532806638881 in words is "thirty-eight trillion, five hundred thirty-two billion, eight hundred six million, six hundred thirty-eight thousand, eight hundred eighty-one".