51144601367 has 4 divisors (see below), whose sum is σ = 51343607856. Its totient is φ = 50945594880.

The previous prime is 51144601357. The next prime is 51144601373. The reversal of 51144601367 is 76310644115.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76310644115 = 5 ⋅15262128823.

It is a cyclic number.

It is not a de Polignac number, because 51144601367 - 2⁸ = 51144601111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51144601367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51144601357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99502859 + ... + 99503372.

It is an arithmetic number, because the mean of its divisors is an integer number (12835901964).

Almost surely, 2^51144601367 is an apocalyptic number.

51144601367 is a deficient number, since it is larger than the sum of its proper divisors (199006489).

51144601367 is a wasteful number, since it uses less digits than its factorization.

51144601367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199006488.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 51144601367 in words is "fifty-one billion, one hundred forty-four million, six hundred one thousand, three hundred sixty-seven".