4778000642 has 32 divisors (see below), whose sum is σ = 7740532800. Its totient is φ = 2204653248.

The previous prime is 4778000627. The next prime is 4778000663. The reversal of 4778000642 is 2460008774.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 4778000596 and 4778000605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631868 + ... + 639384.

It is an arithmetic number, because the mean of its divisors is an integer number (241891650).

Almost surely, 2^4778000642 is an apocalyptic number.

4778000642 is a deficient number, since it is larger than the sum of its proper divisors (2962532158).

4778000642 is a wasteful number, since it uses less digits than its factorization.

4778000642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7970.

The product of its (nonzero) digits is 75264, while the sum is 38.

The square root of 4778000642 is about 69123.0832790320. The cubic root of 4778000642 is about 1684.2843032970.

The spelling of 4778000642 in words is "four billion, seven hundred seventy-eight million, six hundred forty-two", and thus it is an aban number.