51401865227546 has 8 divisors (see below), whose sum is σ = 77107574718804. Its totient is φ = 25699340321280.

The previous prime is 51401865227513. The next prime is 51401865227567. The reversal of 51401865227546 is 64572256810415.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 48294313246921 + 3107551980625 = 6949411^2 + 1762825^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 51401865227491 and 51401865227500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 796105895 + ... + 796170458.

Almost surely, 2^{51401865227546} is an apocalyptic number.

51401865227546 is a deficient number, since it is larger than the sum of its proper divisors (25705709491258).

51401865227546 is a wasteful number, since it uses less digits than its factorization.

51401865227546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592292496.

The product of its (nonzero) digits is 16128000, while the sum is 56.

The spelling of 51401865227546 in words is "fifty-one trillion, four hundred one billion, eight hundred sixty-five million, two hundred twenty-seven thousand, five hundred forty-six".