123416521407 has 6 divisors (see below), whose sum is σ = 178268308712. Its totient is φ = 82277680932.

The previous prime is 123416521387. The next prime is 123416521421. The reversal of 123416521407 is 704125614321.

123416521407 is a `hidden beast` number, since 1 + 23 + 416 + 5 + 214 + 0 + 7 = 666.

It is not a de Polignac number, because 123416521407 - 2¹² = 123416517311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123416521447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6856473403 + ... + 6856473420.

Almost surely, 2^123416521407 is an apocalyptic number.

123416521407 is a deficient number, since it is larger than the sum of its proper divisors (54851787305).

123416521407 is a wasteful number, since it uses less digits than its factorization.

123416521407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13712946829 (or 13712946826 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 123416521407 in words is "one hundred twenty-three billion, four hundred sixteen million, five hundred twenty-one thousand, four hundred seven".