2113636478 has 8 divisors (see below), whose sum is σ = 3181738320. Its totient is φ = 1053057040.

The previous prime is 2113636457. The next prime is 2113636501. The reversal of 2113636478 is 8746363112.

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

It is a super-2 number, since 2×2113636478² = 8934918322264488968, 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 3 ways as a sum of consecutive naturals, for example, 1879898 + ... + 1881021.

It is an arithmetic number, because the mean of its divisors is an integer number (397717290).

Almost surely, 2^2113636478 is an apocalyptic number.

2113636478 is a deficient number, since it is larger than the sum of its proper divisors (1068101842).

2113636478 is a wasteful number, since it uses less digits than its factorization.

2113636478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3761202.

The product of its digits is 145152, while the sum is 41.

The square root of 2113636478 is about 45974.3023655607. The cubic root of 2113636478 is about 1283.3450264559.

The spelling of 2113636478 in words is "two billion, one hundred thirteen million, six hundred thirty-six thousand, four hundred seventy-eight".