54812486981 has 8 divisors (see below), whose sum is σ = 62713472640. Its totient is φ = 46929158928.

The previous prime is 54812486933. The next prime is 54812486999. The reversal of 54812486981 is 18968421845.

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 54812486981 - 2⁶ = 54812486917 is a prime.

It is a super-2 number, since 2×54812486981² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54812486921) 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, 4407746 + ... + 4420163.

It is an arithmetic number, because the mean of its divisors is an integer number (7839184080).

Almost surely, 2^54812486981 is an apocalyptic number.

It is an amenable number.

54812486981 is a deficient number, since it is larger than the sum of its proper divisors (7900985659).

54812486981 is an equidigital number, since it uses as much as digits as its factorization.

54812486981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8828803.

The product of its digits is 4423680, while the sum is 56.

The spelling of 54812486981 in words is "fifty-four billion, eight hundred twelve million, four hundred eighty-six thousand, nine hundred eighty-one".