4729978146 has 8 divisors (see below), whose sum is σ = 9459956304. Its totient is φ = 1576659380.

The previous prime is 4729978111. The next prime is 4729978157. The reversal of 4729978146 is 6418799274.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

4729978146 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394164840 + ... + 394164851.

It is an arithmetic number, because the mean of its divisors is an integer number (1182494538).

Almost surely, 2^4729978146 is an apocalyptic number.

4729978146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4729978146 is a wasteful number, since it uses less digits than its factorization.

4729978146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788329696.

The product of its digits is 6096384, while the sum is 57.

The square root of 4729978146 is about 68774.8365755965. The cubic root of 4729978146 is about 1678.6225181210.

The spelling of 4729978146 in words is "four billion, seven hundred twenty-nine million, nine hundred seventy-eight thousand, one hundred forty-six".