123470517405 has 16 divisors (see below), whose sum is σ = 197559239040. Its totient is φ = 65848805568.

The previous prime is 123470517389. The next prime is 123470517451. The reversal of 123470517405 is 504715074321.

It is not a de Polignac number, because 123470517405 - 2⁴ = 123470517389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 417351 + ... + 648939.

It is an arithmetic number, because the mean of its divisors is an integer number (12347452440).

Almost surely, 2^123470517405 is an apocalyptic number.

123470517405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123470517405 is a deficient number, since it is larger than the sum of its proper divisors (74088721635).

123470517405 is a wasteful number, since it uses less digits than its factorization.

123470517405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267140.

The product of its (nonzero) digits is 117600, while the sum is 39.

The spelling of 123470517405 in words is "one hundred twenty-three billion, four hundred seventy million, five hundred seventeen thousand, four hundred five".