189259448851 has 8 divisors (see below), whose sum is σ = 207003930624. Its totient is φ = 171604813320.

The previous prime is 189259448789. The next prime is 189259448857. The reversal of 189259448851 is 158844952981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189259448851 - 2³¹ = 187111965203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189259448857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22457151 + ... + 22465576.

It is an arithmetic number, because the mean of its divisors is an integer number (25875491328).

Almost surely, 2^189259448851 is an apocalyptic number.

189259448851 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

189259448851 is a deficient number, since it is larger than the sum of its proper divisors (17744481773).

189259448851 is a wasteful number, since it uses less digits than its factorization.

189259448851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44923121.

The product of its digits is 33177600, while the sum is 64.

It can be divided in two parts, 18925 and 9448851, that added together give a triangular number (9467776 = T₄₃₅₁).

The spelling of 189259448851 in words is "one hundred eighty-nine billion, two hundred fifty-nine million, four hundred forty-eight thousand, eight hundred fifty-one".