51267276215 has 32 divisors (see below), whose sum is σ = 63887088960. Its totient is φ = 39473823744.

The previous prime is 51267276187. The next prime is 51267276239.

51267276215 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 51267276215 - 2⁸ = 51267275959 is a prime.

It is a super-2 number, since 2×51267276215² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2941607 + ... + 2958983.

It is an arithmetic number, because the mean of its divisors is an integer number (1996471530).

Almost surely, 2^51267276215 is an apocalyptic number.

51267276215 is a deficient number, since it is larger than the sum of its proper divisors (12619812745).

51267276215 is a wasteful number, since it uses less digits than its factorization.

51267276215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17651.

The product of its digits is 352800, while the sum is 44.

The spelling of 51267276215 in words is "fifty-one billion, two hundred sixty-seven million, two hundred seventy-six thousand, two hundred fifteen".