48685978819 has 4 divisors (see below), whose sum is σ = 51549859944. Its totient is φ = 45822097696.

The previous prime is 48685978811. The next prime is 48685978829. The reversal of 48685978819 is 91887958684.

48685978819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 48685978819 - 2³ = 48685978811 is a prime.

It is a super-2 number, since 2×48685978819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48685978811) 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, 1431940537 + ... + 1431940570.

It is an arithmetic number, because the mean of its divisors is an integer number (12887464986).

Almost surely, 2^48685978819 is an apocalyptic number.

48685978819 is a deficient number, since it is larger than the sum of its proper divisors (2863881125).

48685978819 is a wasteful number, since it uses less digits than its factorization.

48685978819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2863881124.

The product of its digits is 278691840, while the sum is 73.

The spelling of 48685978819 in words is "forty-eight billion, six hundred eighty-five million, nine hundred seventy-eight thousand, eight hundred nineteen".