38540400127 has 4 divisors (see below), whose sum is σ = 39083222736. Its totient is φ = 37997577520.

The previous prime is 38540400097. The next prime is 38540400181. The reversal of 38540400127 is 72100404583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72100404583 = 56963 ⋅1265741.

It is a cyclic number.

It is not a de Polignac number, because 38540400127 - 2⁷ = 38540399999 is a prime.

It is a super-2 number, since 2×38540400127² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38540400092 and 38540400101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38540400427) 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, 271411198 + ... + 271411339.

It is an arithmetic number, because the mean of its divisors is an integer number (9770805684).

Almost surely, 2^38540400127 is an apocalyptic number.

38540400127 is a deficient number, since it is larger than the sum of its proper divisors (542822609).

38540400127 is an equidigital number, since it uses as much as digits as its factorization.

38540400127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542822608.

The product of its (nonzero) digits is 26880, while the sum is 34.

The spelling of 38540400127 in words is "thirty-eight billion, five hundred forty million, four hundred thousand, one hundred twenty-seven".