407243470182661 has 16 divisors (see below), whose sum is σ = 494411607606400. Its totient is φ = 327660056290368.

The previous prime is 407243470182581. The next prime is 407243470182709. The reversal of 407243470182661 is 166281074342704.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 407243470182661 - 2²³ = 407243461794053 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 (407243470188661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14045769810 + ... + 14045798803.

It is an arithmetic number, because the mean of its divisors is an integer number (30900725475400).

Almost surely, 2^{407243470182661} is an apocalyptic number.

It is an amenable number.

407243470182661 is a deficient number, since it is larger than the sum of its proper divisors (87168137423739).

407243470182661 is a wasteful number, since it uses less digits than its factorization.

407243470182661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28091568748.

The product of its (nonzero) digits is 10838016, while the sum is 55.

The spelling of 407243470182661 in words is "four hundred seven trillion, two hundred forty-three billion, four hundred seventy million, one hundred eighty-two thousand, six hundred sixty-one".