51641814615 has 8 divisors (see below), whose sum is σ = 82626903408. Its totient is φ = 27542301120.

The previous prime is 51641814589. The next prime is 51641814643.

51641814615 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 51641814615 - 2⁶ = 51641814551 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1721393806 + ... + 1721393835.

It is an arithmetic number, because the mean of its divisors is an integer number (10328362926).

Almost surely, 2^51641814615 is an apocalyptic number.

51641814615 is a deficient number, since it is larger than the sum of its proper divisors (30985088793).

51641814615 is a wasteful number, since it uses less digits than its factorization.

51641814615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3442787649.

The product of its digits is 115200, while the sum is 42.

The spelling of 51641814615 in words is "fifty-one billion, six hundred forty-one million, eight hundred fourteen thousand, six hundred fifteen".