51044403662 has 8 divisors (see below), whose sum is σ = 87504692016. Its totient is φ = 21876172992.

The previous prime is 51044403647. The next prime is 51044403671. The reversal of 51044403662 is 26630444015.

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

It is a super-2 number, since 2×51044403662² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1823014403 + ... + 1823014430.

It is an arithmetic number, because the mean of its divisors is an integer number (10938086502).

Almost surely, 2^51044403662 is an apocalyptic number.

51044403662 is a deficient number, since it is larger than the sum of its proper divisors (36460288354).

51044403662 is a wasteful number, since it uses less digits than its factorization.

51044403662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646028842.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 51044403662 its reverse (26630444015), we get a palindrome (77674847677).

The spelling of 51044403662 in words is "fifty-one billion, forty-four million, four hundred three thousand, six hundred sixty-two".