38027791261 has 4 divisors (see below), whose sum is σ = 38028488224. Its totient is φ = 38027094300.

The previous prime is 38027791247. The next prime is 38027791327. The reversal of 38027791261 is 16219772083.

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 38027791261 - 2¹⁷ = 38027660189 is a prime.

It is a super-2 number, since 2×38027791261² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38027791211) 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, 258975 + ... + 378316.

It is an arithmetic number, because the mean of its divisors is an integer number (9507122056).

Almost surely, 2^38027791261 is an apocalyptic number.

It is an amenable number.

38027791261 is a deficient number, since it is larger than the sum of its proper divisors (696963).

38027791261 is an equidigital number, since it uses as much as digits as its factorization.

38027791261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 696962.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 38027791261 in words is "thirty-eight billion, twenty-seven million, seven hundred ninety-one thousand, two hundred sixty-one".