123477298488 has 96 divisors (see below), whose sum is σ = 341010830160. Its totient is φ = 40352048640.

The previous prime is 123477298481. The next prime is 123477298489. The reversal of 123477298488 is 884892774321.

123477298488 is a `hidden beast` number, since 1 + 2 + 3 + 477 + 2 + 9 + 84 + 88 = 666.

It is a super-2 number, since 2×123477298488² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123477298481) 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, 1302556 + ... + 1394132.

Almost surely, 2^123477298488 is an apocalyptic number.

123477298488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123477298488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170505415080).

123477298488 is an abundant number, since it is smaller than the sum of its proper divisors (217533531672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123477298488 is a wasteful number, since it uses less digits than its factorization.

123477298488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91957 (or 91950 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 63.

The spelling of 123477298488 in words is "one hundred twenty-three billion, four hundred seventy-seven million, two hundred ninety-eight thousand, four hundred eighty-eight".