4778138034 has 12 divisors (see below), whose sum is σ = 10352632446. Its totient is φ = 1592712672.

The previous prime is 4778138023. The next prime is 4778138039. The reversal of 4778138034 is 4308318774.

It can be written as a sum of positive squares in only one way, i.e., 3875436009 + 902702025 = 62253^2 + 30045^2 .

It is not an unprimeable number, because it can be changed into a prime (4778138039) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132726039 + ... + 132726074.

Almost surely, 2^4778138034 is an apocalyptic number.

4778138034 is an abundant number, since it is smaller than the sum of its proper divisors (5574494412).

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

4778138034 is a wasteful number, since it uses less digits than its factorization.

4778138034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265452121 (or 265452118 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 4778138034 is about 69124.0770932965. The cubic root of 4778138034 is about 1684.3004470768.

The spelling of 4778138034 in words is "four billion, seven hundred seventy-eight million, one hundred thirty-eight thousand, thirty-four".