53877555978 has 8 divisors (see below), whose sum is σ = 107755111968. Its totient is φ = 17959185324.

The previous prime is 53877555973. The next prime is 53877555997. The reversal of 53877555978 is 87955577835.

It is a sphenic number, since it is the product of 3 distinct primes.

53877555978 is an admirable number.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53877555973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4489796326 + ... + 4489796337.

It is an arithmetic number, because the mean of its divisors is an integer number (13469388996).

Almost surely, 2^53877555978 is an apocalyptic number.

53877555978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

53877555978 is a wasteful number, since it uses less digits than its factorization.

53877555978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8979592668.

The product of its digits is 370440000, while the sum is 69.

The spelling of 53877555978 in words is "fifty-three billion, eight hundred seventy-seven million, five hundred fifty-five thousand, nine hundred seventy-eight".