981948849189 has 64 divisors (see below), whose sum is σ = 1640695203840. Its totient is φ = 507492760320.

The previous prime is 981948849179. The next prime is 981948849317.

981948849189 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 981948849189 - 2⁷ = 981948849061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981948849109) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78442959 + ... + 78455475.

It is an arithmetic number, because the mean of its divisors is an integer number (25635862560).

Almost surely, 2^981948849189 is an apocalyptic number.

It is an amenable number.

981948849189 is a deficient number, since it is larger than the sum of its proper divisors (658746354651).

981948849189 is a wasteful number, since it uses less digits than its factorization.

981948849189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14250.

The product of its digits is 429981696, while the sum is 78.

The spelling of 981948849189 in words is "nine hundred eighty-one billion, nine hundred forty-eight million, eight hundred forty-nine thousand, one hundred eighty-nine".