864920919141 has 24 divisors (see below), whose sum is σ = 1357506525440. Its totient is φ = 528644361600.

The previous prime is 864920919077. The next prime is 864920919143. The reversal of 864920919141 is 141919029468.

864920919141 is a `hidden beast` number, since 8 + 6 + 492 + 0 + 9 + 1 + 9 + 141 = 666.

864920919141 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 864920919141 - 2⁶ = 864920919077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864920919143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81575620 + ... + 81586221.

Almost surely, 2^864920919141 is an apocalyptic number.

It is an amenable number.

864920919141 is a deficient number, since it is larger than the sum of its proper divisors (492585606299).

864920919141 is a wasteful number, since it uses less digits than its factorization.

864920919141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163161897 (or 163161894 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The spelling of 864920919141 in words is "eight hundred sixty-four billion, nine hundred twenty million, nine hundred nineteen thousand, one hundred forty-one".