2601799878 has 16 divisors (see below), whose sum is σ = 5281266240. Its totient is φ = 854322216.

The previous prime is 2601799847. The next prime is 2601799919. The reversal of 2601799878 is 8789971062.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3235668 + ... + 3236471.

It is an arithmetic number, because the mean of its divisors is an integer number (330079140).

Almost surely, 2^2601799878 is an apocalyptic number.

2601799878 is an abundant number, since it is smaller than the sum of its proper divisors (2679466362).

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

2601799878 is a wasteful number, since it uses less digits than its factorization.

2601799878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6472211.

The product of its (nonzero) digits is 3048192, while the sum is 57.

The square root of 2601799878 is about 51007.8413383668. The cubic root of 2601799878 is about 1375.3860959609.

The spelling of 2601799878 in words is "two billion, six hundred one million, seven hundred ninety-nine thousand, eight hundred seventy-eight".