78054128 has 20 divisors (see below), whose sum is σ = 159189960. Its totient is φ = 36972864.

The previous prime is 78054101. The next prime is 78054131. The reversal of 78054128 is 82145087.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128075 + ... + 128682.

It is an arithmetic number, because the mean of its divisors is an integer number (7959498).

Almost surely, 2^78054128 is an apocalyptic number.

It is an amenable number.

78054128 is an abundant number, since it is smaller than the sum of its proper divisors (81135832).

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

78054128 is a wasteful number, since it uses less digits than its factorization.

78054128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256784 (or 256778 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 35.

The square root of 78054128 is about 8834.8247294443. The cubic root of 78054128 is about 427.3646788506.

The spelling of 78054128 in words is "seventy-eight million, fifty-four thousand, one hundred twenty-eight".