2489726278 has 16 divisors (see below), whose sum is σ = 4027632336. Its totient is φ = 1147456800.

The previous prime is 2489726269. The next prime is 2489726293. The reversal of 2489726278 is 8726279842.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50076 + ... + 86527.

It is an arithmetic number, because the mean of its divisors is an integer number (251727021).

Almost surely, 2^2489726278 is an apocalyptic number.

2489726278 is a deficient number, since it is larger than the sum of its proper divisors (1537906058).

2489726278 is a wasteful number, since it uses less digits than its factorization.

2489726278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137319.

The product of its digits is 5419008, while the sum is 55.

The square root of 2489726278 is about 49897.1570132007. The cubic root of 2489726278 is about 1355.3471109566.

The spelling of 2489726278 in words is "two billion, four hundred eighty-nine million, seven hundred twenty-six thousand, two hundred seventy-eight".