51087616654 has 8 divisors (see below), whose sum is σ = 79103406528. Its totient is φ = 24719814480.

The previous prime is 51087616603. The next prime is 51087616663. The reversal of 51087616654 is 45661678015.

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 = 51087616598 and 51087616607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 411996847 + ... + 411996970.

It is an arithmetic number, because the mean of its divisors is an integer number (9887925816).

Almost surely, 2^51087616654 is an apocalyptic number.

51087616654 is a deficient number, since it is larger than the sum of its proper divisors (28015789874).

51087616654 is a wasteful number, since it uses less digits than its factorization.

51087616654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823993850.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 51087616654 in words is "fifty-one billion, eighty-seven million, six hundred sixteen thousand, six hundred fifty-four".