5139978448 has 40 divisors (see below), whose sum is σ = 11129037696. Its totient is φ = 2279366400.

The previous prime is 5139978443. The next prime is 5139978449. The reversal of 5139978448 is 8448799315.

It is a junction number, because it is equal to n+sod(n) for n = 5139978392 and 5139978401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5139978443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348936 + ... + 363367.

Almost surely, 2^5139978448 is an apocalyptic number.

It is an amenable number.

5139978448 is an abundant number, since it is smaller than the sum of its proper divisors (5989059248).

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

5139978448 is a wasteful number, since it uses less digits than its factorization.

5139978448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712363 (or 712357 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 58.

The square root of 5139978448 is about 71693.6430096839. The cubic root of 5139978448 is about 1725.7866269346.

The spelling of 5139978448 in words is "five billion, one hundred thirty-nine million, nine hundred seventy-eight thousand, four hundred forty-eight".