51650446351 has 4 divisors (see below), whose sum is σ = 59029081552. Its totient is φ = 44271811152.

The previous prime is 51650446339. The next prime is 51650446381. The reversal of 51650446351 is 15364405615.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51650446351 - 2⁷ = 51650446223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51650446381) 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, 3689317590 + ... + 3689317603.

It is an arithmetic number, because the mean of its divisors is an integer number (14757270388).

Almost surely, 2^51650446351 is an apocalyptic number.

51650446351 is a deficient number, since it is larger than the sum of its proper divisors (7378635201).

51650446351 is an equidigital number, since it uses as much as digits as its factorization.

51650446351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7378635200.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 51650446351 in words is "fifty-one billion, six hundred fifty million, four hundred forty-six thousand, three hundred fifty-one".