276138843805269 has 48 divisors (see below), whose sum is σ = 411838674832000. Its totient is φ = 178159546147968.

The previous prime is 276138843805247. The next prime is 276138843805273. The reversal of 276138843805269 is 962508348831672.

276138843805269 is a `hidden beast` number, since 2 + 7 + 6 + 1 + 3 + 88 + 438 + 0 + 52 + 69 = 666.

It is not a de Polignac number, because 276138843805269 - 2¹⁵ = 276138843772501 is a prime.

It is a super-2 number, since 2×276138843805269² (a number of 30 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 = 276138843805197 and 276138843805206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276138843815269) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 205353942 + ... + 206694264.

It is a 1-persistent number, because it is pandigital, but 2⋅276138843805269 = 552277687610538 is not.

Almost surely, 2^{276138843805269} is an apocalyptic number.

It is an amenable number.

276138843805269 is a deficient number, since it is larger than the sum of its proper divisors (135699831026731).

276138843805269 is a wasteful number, since it uses less digits than its factorization.

276138843805269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343674 (or 1343671 counting only the distinct ones).

The product of its (nonzero) digits is 836075520, while the sum is 72.

The spelling of 276138843805269 in words is "two hundred seventy-six trillion, one hundred thirty-eight billion, eight hundred forty-three million, eight hundred five thousand, two hundred sixty-nine".