54811778736 has 160 divisors (see below), whose sum is σ = 168459217920. Its totient is φ = 15137740800.

The previous prime is 54811778731. The next prime is 54811778737. The reversal of 54811778736 is 63787711845.

It is not an unprimeable number, because it can be changed into a prime (54811778731) 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, 491716 + ... + 592796.

It is an arithmetic number, because the mean of its divisors is an integer number (1052870112).

Almost surely, 2^54811778736 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 54811778736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84229608960).

54811778736 is an abundant number, since it is smaller than the sum of its proper divisors (113647439184).

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

54811778736 is a wasteful number, since it uses less digits than its factorization.

54811778736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101195 (or 101189 counting only the distinct ones).

The product of its digits is 7902720, while the sum is 57.

The spelling of 54811778736 in words is "fifty-four billion, eight hundred eleven million, seven hundred seventy-eight thousand, seven hundred thirty-six".