6346400503 has 4 divisors (see below), whose sum is σ = 6372954720. Its totient is φ = 6319846288.

The previous prime is 6346400483. The next prime is 6346400521. The reversal of 6346400503 is 3050046436.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6346400503 - 2²¹ = 6344303351 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 (6346400563) 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 3 ways as a sum of consecutive naturals, for example, 13276750 + ... + 13277227.

It is an arithmetic number, because the mean of its divisors is an integer number (1593238680).

Almost surely, 2^6346400503 is an apocalyptic number.

6346400503 is a deficient number, since it is larger than the sum of its proper divisors (26554217).

6346400503 is a wasteful number, since it uses less digits than its factorization.

6346400503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26554216.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 6346400503 is about 79664.2987981442. The cubic root of 6346400503 is about 1851.4379376176.

Adding to 6346400503 its reverse (3050046436), we get a palindrome (9396446939).

The spelling of 6346400503 in words is "six billion, three hundred forty-six million, four hundred thousand, five hundred three".