54147866081 has 8 divisors (see below), whose sum is σ = 59825775744. Its totient is φ = 48746927680.

The previous prime is 54147865991. The next prime is 54147866093. The reversal of 54147866081 is 18066874145.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54147866081 is a prime.

It is a super-2 number, since 2×54147866081² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54147806081) 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, 69242405 + ... + 69243186.

It is an arithmetic number, because the mean of its divisors is an integer number (7478221968).

Almost surely, 2^54147866081 is an apocalyptic number.

It is an amenable number.

54147866081 is a deficient number, since it is larger than the sum of its proper divisors (5677909663).

54147866081 is a wasteful number, since it uses less digits than its factorization.

54147866081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138485631.

The product of its (nonzero) digits is 1290240, while the sum is 50.

The spelling of 54147866081 in words is "fifty-four billion, one hundred forty-seven million, eight hundred sixty-six thousand, eighty-one".