8120056478 has 8 divisors (see below), whose sum is σ = 12477160080. Its totient is φ = 3961003120.

The previous prime is 8120056471. The next prime is 8120056487. The reversal of 8120056478 is 8746500218.

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

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8120056471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49512458 + ... + 49512621.

It is an arithmetic number, because the mean of its divisors is an integer number (1559645010).

Almost surely, 2^8120056478 is an apocalyptic number.

8120056478 is a deficient number, since it is larger than the sum of its proper divisors (4357103602).

8120056478 is a wasteful number, since it uses less digits than its factorization.

8120056478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99025122.

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 8120056478 is about 90111.3559880218. The cubic root of 8120056478 is about 2009.9550725501.

The spelling of 8120056478 in words is "eight billion, one hundred twenty million, fifty-six thousand, four hundred seventy-eight".