4894857778 has 32 divisors (see below), whose sum is σ = 7682688000. Its totient is φ = 2336252160.

The previous prime is 4894857763. The next prime is 4894857797. The reversal of 4894857778 is 8777584984.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3138963 + ... + 3140521.

It is an arithmetic number, because the mean of its divisors is an integer number (240084000).

Almost surely, 2^4894857778 is an apocalyptic number.

4894857778 is a deficient number, since it is larger than the sum of its proper divisors (2787830222).

4894857778 is a wasteful number, since it uses less digits than its factorization.

4894857778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250.

The product of its digits is 126443520, while the sum is 67.

The square root of 4894857778 is about 69963.2602013371. The cubic root of 4894857778 is about 1697.9048905224.

The spelling of 4894857778 in words is "four billion, eight hundred ninety-four million, eight hundred fifty-seven thousand, seven hundred seventy-eight".