2678511490 has 8 divisors (see below), whose sum is σ = 4821320700. Its totient is φ = 1071404592.

The previous prime is 2678511487. The next prime is 2678511499. The reversal of 2678511490 is 941158762.

It can be written as a sum of positive squares in 2 ways, for example, as 2546514369 + 131997121 = 50463^2 + 11489^2 .

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

It is not an unprimeable number, because it can be changed into a prime (2678511499) 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, 133925565 + ... + 133925584.

Almost surely, 2^2678511490 is an apocalyptic number.

2678511490 is a deficient number, since it is larger than the sum of its proper divisors (2142809210).

2678511490 is a wasteful number, since it uses less digits than its factorization.

2678511490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267851156.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 2678511490 is about 51754.3378858236. The cubic root of 2678511490 is about 1388.7727016786.

The spelling of 2678511490 in words is "two billion, six hundred seventy-eight million, five hundred eleven thousand, four hundred ninety".