276521420127204 has 72 divisors (see below), whose sum is σ = 798855066854208. Its totient is φ = 79004596098240.

The previous prime is 276521420127193. The next prime is 276521420127209. The reversal of 276521420127204 is 402721024125672.

276521420127204 is a `hidden beast` number, since 2 + 7 + 6 + 5 + 2 + 1 + 420 + 12 + 7 + 204 = 666.

It is a super-2 number, since 2×276521420127204² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 276521420127204.

It is not an unprimeable number, because it can be changed into a prime (276521420127209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2539774 + ... + 23653610.

It is an arithmetic number, because the mean of its divisors is an integer number (11095209261864).

Almost surely, 2^{276521420127204} is an apocalyptic number.

It is an amenable number.

276521420127204 is an abundant number, since it is smaller than the sum of its proper divisors (522333646727004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

276521420127204 is a wasteful number, since it uses less digits than its factorization.

276521420127204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21165825 (or 21165820 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 45.

The spelling of 276521420127204 in words is "two hundred seventy-six trillion, five hundred twenty-one billion, four hundred twenty million, one hundred twenty-seven thousand, two hundred four".