51468768154 has 8 divisors (see below), whose sum is σ = 77205406068. Its totient is φ = 25733632800.

The previous prime is 51468768151. The next prime is 51468768163. The reversal of 51468768154 is 45186786415.

It can be written as a sum of positive squares in 2 ways, for example, as 42507305929 + 8961462225 = 206173^2 + 94665^2 .

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 = 51468768095 and 51468768104.

It is not an unprimeable number, because it can be changed into a prime (51468768151) 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, 285697 + ... + 429604.

Almost surely, 2^51468768154 is an apocalyptic number.

51468768154 is a deficient number, since it is larger than the sum of its proper divisors (25736637914).

51468768154 is a wasteful number, since it uses less digits than its factorization.

51468768154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751280.

The product of its digits is 6451200, while the sum is 55.

The spelling of 51468768154 in words is "fifty-one billion, four hundred sixty-eight million, seven hundred sixty-eight thousand, one hundred fifty-four".