3855591436356 has 405 divisors, whose sum is σ = 11373513182031. Its totient is φ = 1138082853600.

The previous prime is 3855591436351. The next prime is 3855591436373. The reversal of 3855591436356 is 6536341955583.

The square root of 3855591436356 is 1963566.

It is a perfect power (a square), and thus also a powerful number.

3855591436356 is a `hidden beast` number, since 3 + 8 + 5 + 5 + 591 + 4 + 3 + 6 + 35 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 3855591436293 and 3855591436302.

It is not an unprimeable number, because it can be changed into a prime (3855591436351) by changing a digit.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 18272945091 + ... + 18272945301.

Almost surely, 2^{3855591436356} is an apocalyptic number.

3855591436356 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

3855591436356 is the 1963566-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3855591436356

3855591436356 is an abundant number, since it is smaller than the sum of its proper divisors (7517921745675).

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

3855591436356 is a wasteful number, since it uses less digits than its factorization.

3855591436356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 274 counting only the distinct ones).

The product of its digits is 174960000, while the sum is 63.

The spelling of 3855591436356 in words is "three trillion, eight hundred fifty-five billion, five hundred ninety-one million, four hundred thirty-six thousand, three hundred fifty-six".