4538741778 has 24 divisors (see below), whose sum is σ = 10043175168. Its totient is φ = 1480723992.

The previous prime is 4538741771. The next prime is 4538741807. The reversal of 4538741778 is 8771478354.

4538741778 is a `hidden beast` number, since 453 + 87 + 41 + 7 + 78 = 666.

It is not an unprimeable number, because it can be changed into a prime (4538741771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2681626 + ... + 2683317.

It is an arithmetic number, because the mean of its divisors is an integer number (418465632).

Almost surely, 2^4538741778 is an apocalyptic number.

4538741778 is an abundant number, since it is smaller than the sum of its proper divisors (5504433390).

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

4538741778 is a wasteful number, since it uses less digits than its factorization.

4538741778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5364998 (or 5364995 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 54.

The square root of 4538741778 is about 67370.1846368258. The cubic root of 4538741778 is about 1655.6879641194.

The spelling of 4538741778 in words is "four billion, five hundred thirty-eight million, seven hundred forty-one thousand, seven hundred seventy-eight".