942027477561 has 27 divisors (see below), whose sum is σ = 1445532190063. Its totient is φ = 591045005760.

The previous prime is 942027477553. The next prime is 942027477577. The reversal of 942027477561 is 165774720249.

The square root of 942027477561 is 970581.

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

942027477561 is a `hidden beast` number, since 9 + 4 + 2 + 0 + 2 + 7 + 4 + 77 + 561 = 666.

It can be written as a sum of positive squares in only one way, i.e., 733412396025 + 208615081536 = 856395^2 + 456744^2 .

It is not a de Polignac number, because 942027477561 - 2³ = 942027477553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 942027477498 and 942027477507.

It is not an unprimeable number, because it can be changed into a prime (942027477661) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 49490116 + ... + 49509146.

Almost surely, 2^942027477561 is an apocalyptic number.

942027477561 is the 970581-st square number.

942027477561 is the 485291-st centered octagonal number.

It is an amenable number.

942027477561 is a deficient number, since it is larger than the sum of its proper divisors (503504712502).

942027477561 is an frugal number, since it uses more digits than its factorization.

942027477561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38102 (or 19051 counting only the distinct ones).

The product of its (nonzero) digits is 5927040, while the sum is 54.

The spelling of 942027477561 in words is "nine hundred forty-two billion, twenty-seven million, four hundred seventy-seven thousand, five hundred sixty-one".