7126169428989 has 24 divisors (see below), whose sum is σ = 11172437133312. Its totient is φ = 4350804827040.

The previous prime is 7126169428981. The next prime is 7126169428993. The reversal of 7126169428989 is 9898249616217.

7126169428989 is a `hidden beast` number, since 7 + 1 + 2 + 61 + 69 + 428 + 9 + 89 = 666.

It is not a de Polignac number, because 7126169428989 - 2³ = 7126169428981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7126169428981) 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, 239778177 + ... + 239807894.

It is an arithmetic number, because the mean of its divisors is an integer number (465518213888).

Almost surely, 2^{7126169428989} is an apocalyptic number.

It is an amenable number.

7126169428989 is a deficient number, since it is larger than the sum of its proper divisors (4046267704323).

7126169428989 is a wasteful number, since it uses less digits than its factorization.

7126169428989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479586217 (or 479586214 counting only the distinct ones).

The product of its digits is 188116992, while the sum is 72.

The spelling of 7126169428989 in words is "seven trillion, one hundred twenty-six billion, one hundred sixty-nine million, four hundred twenty-eight thousand, nine hundred eighty-nine".