51858894623 has 8 divisors (see below), whose sum is σ = 52322762400. Its totient is φ = 51395113728.

The previous prime is 51858894583. The next prime is 51858894629. The reversal of 51858894623 is 32649885815.

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

It is a cyclic number.

It is not a de Polignac number, because 51858894623 - 2¹⁸ = 51858632479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51858894629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2071163 + ... + 2096051.

It is an arithmetic number, because the mean of its divisors is an integer number (6540345300).

Almost surely, 2^51858894623 is an apocalyptic number.

51858894623 is a deficient number, since it is larger than the sum of its proper divisors (463867777).

51858894623 is a wasteful number, since it uses less digits than its factorization.

51858894623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43441.

The product of its digits is 16588800, while the sum is 59.

The spelling of 51858894623 in words is "fifty-one billion, eight hundred fifty-eight million, eight hundred ninety-four thousand, six hundred twenty-three".