42690171456 has 63 divisors (see below), whose sum is σ = 122377883641. Its totient is φ = 14228404224.

The previous prime is 42690171439. The next prime is 42690171463. The reversal of 42690171456 is 65417109624.

The square root of 42690171456 is 206616.

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

42690171456 is a `hidden beast` number, since 4 + 26 + 9 + 0 + 171 + 456 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10117141056 + 32573030400 = 100584^2 + 180480^2 .

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, 4954480 + ... + 4963088.

Almost surely, 2^42690171456 is an apocalyptic number.

42690171456 is the 206616-th square number.

It is an amenable number.

42690171456 is an abundant number, since it is smaller than the sum of its proper divisors (79687712185).

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

42690171456 is an frugal number, since it uses more digits than its factorization.

42690171456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17236 (or 8614 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 42690171456 in words is "forty-two billion, six hundred ninety million, one hundred seventy-one thousand, four hundred fifty-six".