53978613879 has 16 divisors (see below), whose sum is σ = 74349301760. Its totient is φ = 34798589280.

The previous prime is 53978613833. The next prime is 53978613917. The reversal of 53978613879 is 97831687935.

It is not a de Polignac number, because 53978613879 - 2¹⁶ = 53978548343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53978613379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95284 + ... + 342105.

It is an arithmetic number, because the mean of its divisors is an integer number (4646831360).

Almost surely, 2^53978613879 is an apocalyptic number.

53978613879 is a deficient number, since it is larger than the sum of its proper divisors (20370687881).

53978613879 is a wasteful number, since it uses less digits than its factorization.

53978613879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438750.

The product of its digits is 68584320, while the sum is 66.

The spelling of 53978613879 in words is "fifty-three billion, nine hundred seventy-eight million, six hundred thirteen thousand, eight hundred seventy-nine".