4815981078 has 8 divisors (see below), whose sum is σ = 9631962168. Its totient is φ = 1605327024.

The previous prime is 4815981067. The next prime is 4815981103. The reversal of 4815981078 is 8701895184.

It is a happy number.

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

4815981078 is an admirable number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4815981078.

It is a congruent 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, 401331751 + ... + 401331762.

It is an arithmetic number, because the mean of its divisors is an integer number (1203995271).

Almost surely, 2^4815981078 is an apocalyptic number.

4815981078 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.

4815981078 is a wasteful number, since it uses less digits than its factorization.

4815981078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802663518.

The product of its (nonzero) digits is 645120, while the sum is 51.

The square root of 4815981078 is about 69397.2699607124. The cubic root of 4815981078 is about 1688.7353350348.

The spelling of 4815981078 in words is "four billion, eight hundred fifteen million, nine hundred eighty-one thousand, seventy-eight".