51507222646369 has 16 divisors (see below), whose sum is σ = 62386702011648. Its totient is φ = 41512955645952.

The previous prime is 51507222646357. The next prime is 51507222646421. The reversal of 51507222646369 is 96364622270515.

It is a happy number.

It is not a de Polignac number, because 51507222646369 - 2¹¹ = 51507222644321 is a prime.

It is a super-2 number, since 2×51507222646369² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51507222640369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203464192 + ... + 203717185.

It is an arithmetic number, because the mean of its divisors is an integer number (3899168875728).

Almost surely, 2^{51507222646369} is an apocalyptic number.

It is an amenable number.

51507222646369 is a deficient number, since it is larger than the sum of its proper divisors (10879479365279).

51507222646369 is a wasteful number, since it uses less digits than its factorization.

51507222646369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407182464.

The product of its (nonzero) digits is 32659200, while the sum is 58.

The spelling of 51507222646369 in words is "fifty-one trillion, five hundred seven billion, two hundred twenty-two million, six hundred forty-six thousand, three hundred sixty-nine".