2801947078 has 32 divisors (see below), whose sum is σ = 5106779136. Its totient is φ = 1126945248.

The previous prime is 2801947073. The next prime is 2801947097. The reversal of 2801947078 is 8707491082.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801947073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65026 + ... + 99157.

It is an arithmetic number, because the mean of its divisors is an integer number (159586848).

Almost surely, 2^2801947078 is an apocalyptic number.

2801947078 is a deficient number, since it is larger than the sum of its proper divisors (2304832058).

2801947078 is a wasteful number, since it uses less digits than its factorization.

2801947078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164268.

The product of its (nonzero) digits is 225792, while the sum is 46.

The square root of 2801947078 is about 52933.4211817071. The cubic root of 2801947078 is about 1409.7863764354.

The spelling of 2801947078 in words is "two billion, eight hundred one million, nine hundred forty-seven thousand, seventy-eight".