5357381778 has 72 divisors (see below), whose sum is σ = 14213506320. Its totient is φ = 1450113840.

The previous prime is 5357381773. The next prime is 5357381801. The reversal of 5357381778 is 8771837535.

5357381778 is a `hidden beast` number, since 53 + 573 + 8 + 17 + 7 + 8 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5357381773) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 143088 + ... + 176603.

It is an arithmetic number, because the mean of its divisors is an integer number (197409810).

Almost surely, 2^5357381778 is an apocalyptic number.

5357381778 is an abundant number, since it is smaller than the sum of its proper divisors (8856124542).

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

5357381778 is a wasteful number, since it uses less digits than its factorization.

5357381778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319732 (or 319722 counting only the distinct ones).

The product of its digits is 4939200, while the sum is 54.

The square root of 5357381778 is about 73194.1375931160. The cubic root of 5357381778 is about 1749.7830237657.

The spelling of 5357381778 in words is "five billion, three hundred fifty-seven million, three hundred eighty-one thousand, seven hundred seventy-eight".