403109802355681 has 4 divisors (see below), whose sum is σ = 403112038965952. Its totient is φ = 403107565745412.

The previous prime is 403109802355643. The next prime is 403109802355709. The reversal of 403109802355681 is 186553208901304.

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 403109802355681 - 2¹¹ = 403109802353633 is a prime.

It is a super-2 number, since 2×403109802355681² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403109802355081) 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, 1118034765 + ... + 1118395258.

It is an arithmetic number, because the mean of its divisors is an integer number (100778009741488).

Almost surely, 2^{403109802355681} is an apocalyptic number.

It is an amenable number.

403109802355681 is a deficient number, since it is larger than the sum of its proper divisors (2236610271).

403109802355681 is a wasteful number, since it uses less digits than its factorization.

403109802355681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236610270.

The product of its (nonzero) digits is 6220800, while the sum is 55.

The spelling of 403109802355681 in words is "four hundred three trillion, one hundred nine billion, eight hundred two million, three hundred fifty-five thousand, six hundred eighty-one".