5388378663 has 8 divisors (see below), whose sum is σ = 7562636800. Its totient is φ = 3403186488.

The previous prime is 5388378649. The next prime is 5388378689. The reversal of 5388378663 is 3668738835.

It is a happy number.

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

It is not a de Polignac number, because 5388378663 - 2⁸ = 5388378407 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57), and also a Moran number because the ratio is a prime number: 94532959 = 5388378663 / (5 + 3 + 8 + 8 + 3 + 7 + 8 + 6 + 6 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5388378623) 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, 47266423 + ... + 47266536.

It is an arithmetic number, because the mean of its divisors is an integer number (945329600).

Almost surely, 2^5388378663 is an apocalyptic number.

5388378663 is a deficient number, since it is larger than the sum of its proper divisors (2174258137).

5388378663 is a wasteful number, since it uses less digits than its factorization.

5388378663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94532981.

The product of its digits is 17418240, while the sum is 57.

The square root of 5388378663 is about 73405.5765115975. The cubic root of 5388378663 is about 1753.1511836113.

The spelling of 5388378663 in words is "five billion, three hundred eighty-eight million, three hundred seventy-eight thousand, six hundred sixty-three".