920713173444 has 135 divisors (see below), whose sum is σ = 2462213005343. Its totient is φ = 290095204464.

The previous prime is 920713173371. The next prime is 920713173461. The reversal of 920713173444 is 444371317029.

The square root of 920713173444 is 959538.

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

920713173444 is a `hidden beast` number, since 9 + 2 + 0 + 7 + 131 + 73 + 444 = 666.

It is a super-2 number, since 2×920713173444² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 920713173444.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 2078359087 + ... + 2078359529.

Almost surely, 2^920713173444 is an apocalyptic number.

920713173444 is the 959538-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 920713173444

920713173444 is an abundant number, since it is smaller than the sum of its proper divisors (1541499831899).

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

920713173444 is an frugal number, since it uses more digits than its factorization.

920713173444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The spelling of 920713173444 in words is "nine hundred twenty billion, seven hundred thirteen million, one hundred seventy-three thousand, four hundred forty-four".