276444813213 has 12 divisors (see below), whose sum is σ = 401399801088. Its totient is φ = 183331637640.

The previous prime is 276444813199. The next prime is 276444813287. The reversal of 276444813213 is 312318444672.

276444813213 is a `hidden beast` number, since 2 + 7 + 64 + 448 + 132 + 13 = 666.

It is not a de Polignac number, because 276444813213 - 2¹⁸ = 276444551069 is a prime.

It is a super-3 number, since 3×276444813213³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (276444813713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80406895 + ... + 80410332.

It is an arithmetic number, because the mean of its divisors is an integer number (33449983424).

Almost surely, 2^276444813213 is an apocalyptic number.

It is an amenable number.

276444813213 is a deficient number, since it is larger than the sum of its proper divisors (124954987875).

276444813213 is a wasteful number, since it uses less digits than its factorization.

276444813213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160817424 (or 160817421 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The spelling of 276444813213 in words is "two hundred seventy-six billion, four hundred forty-four million, eight hundred thirteen thousand, two hundred thirteen".