54012506778 has 32 divisors (see below), whose sum is σ = 120036352320. Its totient is φ = 18002885040.

The previous prime is 54012506761. The next prime is 54012506789. The reversal of 54012506778 is 87760521045.

54012506778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1009701 + ... + 1061847.

It is an arithmetic number, because the mean of its divisors is an integer number (3751136010).

Almost surely, 2^54012506778 is an apocalyptic number.

54012506778 is an abundant number, since it is smaller than the sum of its proper divisors (66023845542).

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

54012506778 is a wasteful number, since it uses less digits than its factorization.

54012506778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71339 (or 71333 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 54012506778 in words is "fifty-four billion, twelve million, five hundred six thousand, seven hundred seventy-eight".