2609978426 has 32 divisors (see below), whose sum is σ = 4310767296. Its totient is φ = 1175328000.

The previous prime is 2609978419. The next prime is 2609978447. The reversal of 2609978426 is 6248799062.

It is a super-3 number, since 3×2609978426³ (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1117556 + ... + 1119888.

It is an arithmetic number, because the mean of its divisors is an integer number (134711478).

Almost surely, 2^2609978426 is an apocalyptic number.

2609978426 is a deficient number, since it is larger than the sum of its proper divisors (1700788870).

2609978426 is a wasteful number, since it uses less digits than its factorization.

2609978426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2798.

The product of its (nonzero) digits is 2612736, while the sum is 53.

The square root of 2609978426 is about 51087.9479525259. The cubic root of 2609978426 is about 1376.8257269666.

The spelling of 2609978426 in words is "two billion, six hundred nine million, nine hundred seventy-eight thousand, four hundred twenty-six".