54399831040 has 88 divisors (see below), whose sum is σ = 131040293472. Its totient is φ = 21669150720.

The previous prime is 54399830987. The next prime is 54399831053. The reversal of 54399831040 is 4013899345.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1211877 + ... + 1255963.

It is an arithmetic number, because the mean of its divisors is an integer number (1489094244).

Almost surely, 2^54399831040 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 54399831040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65520146736).

54399831040 is an abundant number, since it is smaller than the sum of its proper divisors (76640462432).

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

54399831040 is a wasteful number, since it uses less digits than its factorization.

54399831040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44353 (or 44335 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 54399831040 in words is "fifty-four billion, three hundred ninety-nine million, eight hundred thirty-one thousand, forty".