4029778518 has 16 divisors (see below), whose sum is σ = 8063072256. Its totient is φ = 1342673640.

The previous prime is 4029778507. The next prime is 4029778531. The reversal of 4029778518 is 8158779204.

It is a super-2 number, since 2×4029778518² = 32478229808268552648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131446 + ... + 159177.

It is an arithmetic number, because the mean of its divisors is an integer number (503942016).

Almost surely, 2^4029778518 is an apocalyptic number.

4029778518 is an abundant number, since it is smaller than the sum of its proper divisors (4033293738).

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

4029778518 is a wasteful number, since it uses less digits than its factorization.

4029778518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292939.

The product of its (nonzero) digits is 1128960, while the sum is 51.

The square root of 4029778518 is about 63480.5365289236. The cubic root of 4029778518 is about 1591.3305211263.

The spelling of 4029778518 in words is "four billion, twenty-nine million, seven hundred seventy-eight thousand, five hundred eighteen".