406718091747 has 12 divisors (see below), whose sum is σ = 640889114424. Its totient is φ = 246495813120.

The previous prime is 406718091719. The next prime is 406718091751. The reversal of 406718091747 is 747190817604.

It is a happy number.

406718091747 is a `hidden beast` number, since 406 + 7 + 1 + 80 + 91 + 74 + 7 = 666.

It is not a de Polignac number, because 406718091747 - 2³⁰ = 405644349923 is a prime.

It is a super-2 number, since 2×406718091747² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 406718091693 and 406718091702.

It is not an unprimeable number, because it can be changed into a prime (406718095747) 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, 2054131678 + ... + 2054131875.

It is an arithmetic number, because the mean of its divisors is an integer number (53407426202).

Almost surely, 2^406718091747 is an apocalyptic number.

406718091747 is a deficient number, since it is larger than the sum of its proper divisors (234171022677).

406718091747 is a wasteful number, since it uses less digits than its factorization.

406718091747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4108263570 (or 4108263567 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 54.

The spelling of 406718091747 in words is "four hundred six billion, seven hundred eighteen million, ninety-one thousand, seven hundred forty-seven".