2478670999 has 16 divisors (see below), whose sum is σ = 2928752640. Its totient is φ = 2052802080.

The previous prime is 2478670979. The next prime is 2478671003. The reversal of 2478670999 is 9990768742.

It is not a de Polignac number, because 2478670999 - 2¹⁷ = 2478539927 is a prime.

It is a super-2 number, since 2×2478670999² = 12287619842567316002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478670979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134337 + ... + 151669.

It is an arithmetic number, because the mean of its divisors is an integer number (183047040).

Almost surely, 2^2478670999 is an apocalyptic number.

2478670999 is a deficient number, since it is larger than the sum of its proper divisors (450081641).

2478670999 is a wasteful number, since it uses less digits than its factorization.

2478670999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18030.

The product of its (nonzero) digits is 13716864, while the sum is 61.

The square root of 2478670999 is about 49786.2531126816. The cubic root of 2478670999 is about 1353.3380583702.

The spelling of 2478670999 in words is "two billion, four hundred seventy-eight million, six hundred seventy thousand, nine hundred ninety-nine".