51406260415 has 16 divisors (see below), whose sum is σ = 63709390080. Its totient is φ = 39778421760.

The previous prime is 51406260397. The next prime is 51406260439.

51406260415 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51406260415 - 2⁷ = 51406260287 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230421 + ... + 394849.

It is an arithmetic number, because the mean of its divisors is an integer number (3981836880).

Almost surely, 2^51406260415 is an apocalyptic number.

51406260415 is a deficient number, since it is larger than the sum of its proper divisors (12303129665).

51406260415 is a wasteful number, since it uses less digits than its factorization.

51406260415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166482.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 51406260415 in words is "fifty-one billion, four hundred six million, two hundred sixty thousand, four hundred fifteen".