889252772004 has 81 divisors (see below), whose sum is σ = 2334570992481. Its totient is φ = 296366668560.

The previous prime is 889252771973. The next prime is 889252772053. The reversal of 889252772004 is 400277252988.

The square root of 889252772004 is 943002.

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

889252772004 is a `hidden beast` number, since 8 + 8 + 92 + 527 + 7 + 20 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 773516732004 + 115736040000 = 879498^2 + 340200^2 .

It is a tau number, because it is divible by the number of its divisors (81).

It is a Harshad number since it is a multiple of its sum of digits (54).

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 26 ways as a sum of consecutive naturals, for example, 152763414 + ... + 152769234.

Almost surely, 2^889252772004 is an apocalyptic number.

889252772004 is the 943002-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889252772004

889252772004 is an abundant number, since it is smaller than the sum of its proper divisors (1445318220477).

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

889252772004 is an frugal number, since it uses more digits than its factorization.

889252772004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11670 (or 5826 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 889252772004 in words is "eight hundred eighty-nine billion, two hundred fifty-two million, seven hundred seventy-two thousand, four".