407942873893 has 4 divisors (see below), whose sum is σ = 425679520608. Its totient is φ = 390206227180.

The previous prime is 407942873881. The next prime is 407942873911. The reversal of 407942873893 is 398378249704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 407942873893 - 2¹⁷ = 407942742821 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 (407942873873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8868323323 + ... + 8868323368.

It is an arithmetic number, because the mean of its divisors is an integer number (106419880152).

Almost surely, 2^407942873893 is an apocalyptic number.

It is an amenable number.

407942873893 is a deficient number, since it is larger than the sum of its proper divisors (17736646715).

407942873893 is a wasteful number, since it uses less digits than its factorization.

407942873893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17736646714.

The product of its (nonzero) digits is 73156608, while the sum is 64.

The spelling of 407942873893 in words is "four hundred seven billion, nine hundred forty-two million, eight hundred seventy-three thousand, eight hundred ninety-three".