42194690113536 has 171 divisors, whose sum is σ = 121924369483501. Its totient is φ = 14061570883584.

The previous prime is 42194690113529. The next prime is 42194690113559. The reversal of 42194690113536 is 63531109649124.

The square root of 42194690113536 is 6495744.

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

42194690113536 is a `hidden beast` number, since 4 + 2 + 1 + 9 + 4 + 6 + 90 + 1 + 13 + 536 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42035201703936 + 159488409600 = 6483456^2 + 399360^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9977460670 + ... + 9977464898.

Almost surely, 2^{42194690113536} is an apocalyptic number.

42194690113536 is the 6495744-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42194690113536

42194690113536 is an abundant number, since it is smaller than the sum of its proper divisors (79729679369965).

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

42194690113536 is an frugal number, since it uses more digits than its factorization.

42194690113536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8500 (or 4234 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 54.

The spelling of 42194690113536 in words is "forty-two trillion, one hundred ninety-four billion, six hundred ninety million, one hundred thirteen thousand, five hundred thirty-six".