54151781689 has 8 divisors (see below), whose sum is σ = 54861470720. Its totient is φ = 53442698400.

The previous prime is 54151781681. The next prime is 54151781701. The reversal of 54151781689 is 98618715145.

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 54151781689 - 2³ = 54151781681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54151781681) 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, 29944 + ... + 330454.

It is an arithmetic number, because the mean of its divisors is an integer number (6857683840).

Almost surely, 2^54151781689 is an apocalyptic number.

It is an amenable number.

54151781689 is a deficient number, since it is larger than the sum of its proper divisors (709689031).

54151781689 is a wasteful number, since it uses less digits than its factorization.

54151781689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302871.

The product of its digits is 2419200, while the sum is 55.

The spelling of 54151781689 in words is "fifty-four billion, one hundred fifty-one million, seven hundred eighty-one thousand, six hundred eighty-nine".