123487096839489 has 12 divisors (see below), whose sum is σ = 178528240598500. Its totient is φ = 82251812945664.

The previous prime is 123487096839433. The next prime is 123487096839577. The reversal of 123487096839489 is 984938690784321.

123487096839489 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 8 + 70 + 9 + 68 + 3 + 9 + 489 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 61403413177089 + 62083683662400 = 7836033^2 + 7879320^2 .

It is not a de Polignac number, because 123487096839489 - 2¹³ = 123487096831297 is a prime.

It is a super-2 number, since 2×123487096839489² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123487096839409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6076512664 + ... + 6076532985.

Almost surely, 2^{123487096839489} is an apocalyptic number.

It is an amenable number.

123487096839489 is a deficient number, since it is larger than the sum of its proper divisors (55041143759011).

123487096839489 is a wasteful number, since it uses less digits than its factorization.

123487096839489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12153046784 (or 12153046781 counting only the distinct ones).

The product of its (nonzero) digits is 4514807808, while the sum is 81.

The spelling of 123487096839489 in words is "one hundred twenty-three trillion, four hundred eighty-seven billion, ninety-six million, eight hundred thirty-nine thousand, four hundred eighty-nine".