125781804054 has 12 divisors (see below), whose sum is σ = 272527242156. Its totient is φ = 41927268012.

The previous prime is 125781804017. The next prime is 125781804079. The reversal of 125781804054 is 450408187521.

125781804054 is a `hidden beast` number, since 12 + 57 + 8 + 180 + 405 + 4 = 666.

125781804054 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3493938984 + ... + 3493939019.

It is an arithmetic number, because the mean of its divisors is an integer number (22710603513).

Almost surely, 2^125781804054 is an apocalyptic number.

125781804054 is an abundant number, since it is smaller than the sum of its proper divisors (146745438102).

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

125781804054 is a wasteful number, since it uses less digits than its factorization.

125781804054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6987878011 (or 6987878008 counting only the distinct ones).

The product of its (nonzero) digits is 358400, while the sum is 45.

The spelling of 125781804054 in words is "one hundred twenty-five billion, seven hundred eighty-one million, eight hundred four thousand, fifty-four".