53978551388 has 6 divisors (see below), whose sum is σ = 94462464936. Its totient is φ = 26989275692.

The previous prime is 53978551343. The next prime is 53978551439. The reversal of 53978551388 is 88315587935.

53978551388 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 53978551388.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6747318920 + ... + 6747318927.

It is an arithmetic number, because the mean of its divisors is an integer number (15743744156).

Almost surely, 2^53978551388 is an apocalyptic number.

It is an amenable number.

53978551388 is a deficient number, since it is larger than the sum of its proper divisors (40483913548).

53978551388 is a wasteful number, since it uses less digits than its factorization.

53978551388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13494637851 (or 13494637849 counting only the distinct ones).

The product of its digits is 36288000, while the sum is 62.

The spelling of 53978551388 in words is "fifty-three billion, nine hundred seventy-eight million, five hundred fifty-one thousand, three hundred eighty-eight".