4778766072 has 48 divisors (see below), whose sum is σ = 13421848440. Its totient is φ = 1592921376.

The previous prime is 4778766071. The next prime is 4778766121. The reversal of 4778766072 is 2706678774.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4778766071) 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, 1227163 + ... + 1231050.

Almost surely, 2^4778766072 is an apocalyptic number.

It is an amenable number.

4778766072 is an abundant number, since it is smaller than the sum of its proper divisors (8643082368).

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

4778766072 is a wasteful number, since it uses less digits than its factorization.

4778766072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458234 (or 2458218 counting only the distinct ones).

The product of its (nonzero) digits is 5531904, while the sum is 54.

The square root of 4778766072 is about 69128.6197750252. The cubic root of 4778766072 is about 1684.3742386064.

The spelling of 4778766072 in words is "four billion, seven hundred seventy-eight million, seven hundred sixty-six thousand, seventy-two".