2113781624256 has 112 divisors (see below), whose sum is σ = 5877447492224. Its totient is φ = 669607658496.

The previous prime is 2113781624239. The next prime is 2113781624267. The reversal of 2113781624256 is 6524261873112.

It is a super-3 number, since 3×2113781624256³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 3154390 + ... + 3765333.

It is an arithmetic number, because the mean of its divisors is an integer number (52477209752).

Almost surely, 2^{2113781624256} is an apocalyptic number.

It is an amenable number.

2113781624256 is an abundant number, since it is smaller than the sum of its proper divisors (3763665867968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2113781624256 is a wasteful number, since it uses less digits than its factorization.

2113781624256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6919818 (or 6919808 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The spelling of 2113781624256 in words is "two trillion, one hundred thirteen billion, seven hundred eighty-one million, six hundred twenty-four thousand, two hundred fifty-six".