51446264415 has 64 divisors (see below), whose sum is σ = 105714395136. Its totient is φ = 20765302272.

The previous prime is 51446264411. The next prime is 51446264453.

It is a happy number.

51446264415 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51446264415 - 2² = 51446264411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51446264411) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 787944 + ... + 850733.

It is an arithmetic number, because the mean of its divisors is an integer number (1651787424).

Almost surely, 2^51446264415 is an apocalyptic number.

51446264415 is an abundant number, since it is smaller than the sum of its proper divisors (54268130721).

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

51446264415 is a wasteful number, since it uses less digits than its factorization.

51446264415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638728.

The product of its digits is 460800, while the sum is 42.

The spelling of 51446264415 in words is "fifty-one billion, four hundred forty-six million, two hundred sixty-four thousand, four hundred fifteen".