54198867081 has 32 divisors (see below), whose sum is σ = 75395203072. Its totient is φ = 34594490880.

The previous prime is 54198867071. The next prime is 54198867097. The reversal of 54198867081 is 18076889145.

It is not a de Polignac number, because 54198867081 - 2¹⁸ = 54198604937 is a prime.

It is a super-2 number, since 2×54198867081² (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 (54198867011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3372441 + ... + 3388473.

It is an arithmetic number, because the mean of its divisors is an integer number (2356100096).

Almost surely, 2^54198867081 is an apocalyptic number.

It is an amenable number.

54198867081 is a deficient number, since it is larger than the sum of its proper divisors (21196335991).

54198867081 is a wasteful number, since it uses less digits than its factorization.

54198867081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16453.

The product of its (nonzero) digits is 3870720, while the sum is 57.

The spelling of 54198867081 in words is "fifty-four billion, one hundred ninety-eight million, eight hundred sixty-seven thousand, eighty-one".