54807278136 has 128 divisors (see below), whose sum is σ = 149772779520. Its totient is φ = 16611277824.

The previous prime is 54807278107. The next prime is 54807278143. The reversal of 54807278136 is 63187270845.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32956041 + ... + 32957703.

It is an arithmetic number, because the mean of its divisors is an integer number (1170099840).

Almost surely, 2^54807278136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54807278136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74886389760).

54807278136 is an abundant number, since it is smaller than the sum of its proper divisors (94965501384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54807278136 is a wasteful number, since it uses less digits than its factorization.

54807278136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205 (or 3201 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 51.

The spelling of 54807278136 in words is "fifty-four billion, eight hundred seven million, two hundred seventy-eight thousand, one hundred thirty-six".