2478620285 has 16 divisors (see below), whose sum is σ = 3113994240. Its totient is φ = 1891444800.

The previous prime is 2478620257. The next prime is 2478620293. The reversal of 2478620285 is 5820268742.

It is a de Polignac number, because none of the positive numbers 2^k-2478620285 is a prime.

It is a super-2 number, since 2×2478620285² = 12287117034426962450, which contains 22 as substring.

It is a congruent number.

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, 90941 + ... + 115010.

It is an arithmetic number, because the mean of its divisors is an integer number (194624640).

Almost surely, 2^2478620285 is an apocalyptic number.

It is an amenable number.

2478620285 is a deficient number, since it is larger than the sum of its proper divisors (635373955).

2478620285 is a wasteful number, since it uses less digits than its factorization.

2478620285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206068.

The product of its (nonzero) digits is 430080, while the sum is 44.

The square root of 2478620285 is about 49785.7437927767. The cubic root of 2478620285 is about 1353.3288284704.

The spelling of 2478620285 in words is "two billion, four hundred seventy-eight million, six hundred twenty thousand, two hundred eighty-five".