48779875978 has 8 divisors (see below), whose sum is σ = 74369319300. Its totient is φ = 23990102880.

The previous prime is 48779875961. The next prime is 48779876021. The reversal of 48779875978 is 87957897784.

48779875978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 48317754969 + 462121009 = 219813^2 + 21497^2 .

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

It is a super-2 number, since 2×48779875978² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 48779875898 and 48779875907.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199917403 + ... + 199917646.

Almost surely, 2^48779875978 is an apocalyptic number.

48779875978 is a deficient number, since it is larger than the sum of its proper divisors (25589443322).

48779875978 is a wasteful number, since it uses less digits than its factorization.

48779875978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399835112.

The product of its digits is 1991485440, while the sum is 79.

The spelling of 48779875978 in words is "forty-eight billion, seven hundred seventy-nine million, eight hundred seventy-five thousand, nine hundred seventy-eight".