2478820475 has 12 divisors (see below), whose sum is σ = 3074412600. Its totient is φ = 1982620800.

The previous prime is 2478820459. The next prime is 2478820483. The reversal of 2478820475 is 5740288742.

It is a happy number.

It is not a de Polignac number, because 2478820475 - 2⁴ = 2478820459 is a prime.

It is a super-2 number, since 2×2478820475² = 12289101894558451250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154376 + ... + 169674.

It is an arithmetic number, because the mean of its divisors is an integer number (256201050).

Almost surely, 2^2478820475 is an apocalyptic number.

2478820475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2478820475 is a deficient number, since it is larger than the sum of its proper divisors (595592125).

2478820475 is a wasteful number, since it uses less digits than its factorization.

2478820475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21790 (or 21785 counting only the distinct ones).

The product of its (nonzero) digits is 1003520, while the sum is 47.

The square root of 2478820475 is about 49787.7542674903. The cubic root of 2478820475 is about 1353.3652621275.

The spelling of 2478820475 in words is "two billion, four hundred seventy-eight million, eight hundred twenty thousand, four hundred seventy-five".