403256643120453 has 8 divisors (see below), whose sum is σ = 537703422101248. Its totient is φ = 268823813109984.

The previous prime is 403256643120451. The next prime is 403256643120481. The reversal of 403256643120453 is 354021346652304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 403256643120453 - 2¹ = 403256643120451 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 (403256643120451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3487175125 + ... + 3487290762.

It is an arithmetic number, because the mean of its divisors is an integer number (67212927762656).

Almost surely, 2^{403256643120453} is an apocalyptic number.

It is an amenable number.

403256643120453 is a deficient number, since it is larger than the sum of its proper divisors (134446778980795).

403256643120453 is a wasteful number, since it uses less digits than its factorization.

403256643120453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6974485163.

The product of its (nonzero) digits is 6220800, while the sum is 48.

Adding to 403256643120453 its reverse (354021346652304), we get a palindrome (757277989772757).

The spelling of 403256643120453 in words is "four hundred three trillion, two hundred fifty-six billion, six hundred forty-three million, one hundred twenty thousand, four hundred fifty-three".