123247884554405 has 8 divisors (see below), whose sum is σ = 159274189270392. Its totient is φ = 91013822440128.

The previous prime is 123247884554369. The next prime is 123247884554453. The reversal of 123247884554405 is 504455488742321.

It can be written as a sum of positive squares in 4 ways, for example, as 1579903191364 + 121667981363041 = 1256942^2 + 11030321^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123247884554405 - 2⁶ = 123247884554341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 948060650354 + ... + 948060650483.

It is an arithmetic number, because the mean of its divisors is an integer number (19909273658799).

Almost surely, 2^{123247884554405} is an apocalyptic number.

It is an amenable number.

123247884554405 is a deficient number, since it is larger than the sum of its proper divisors (36026304715987).

123247884554405 is a wasteful number, since it uses less digits than its factorization.

123247884554405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1896121300855.

The product of its (nonzero) digits is 172032000, while the sum is 62.

The spelling of 123247884554405 in words is "one hundred twenty-three trillion, two hundred forty-seven billion, eight hundred eighty-four million, five hundred fifty-four thousand, four hundred five".