6403261642371 has 48 divisors (see below), whose sum is σ = 10475601982560. Its totient is φ = 3733417820160.

The previous prime is 6403261642343. The next prime is 6403261642387. The reversal of 6403261642371 is 1732461623046.

6403261642371 is a `hidden beast` number, since 6 + 4 + 0 + 3 + 2 + 616 + 4 + 23 + 7 + 1 = 666.

It is not a de Polignac number, because 6403261642371 - 2²¹ = 6403259545219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6403261642171) 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 47 ways as a sum of consecutive naturals, for example, 3230590 + ... + 4821123.

It is an arithmetic number, because the mean of its divisors is an integer number (218241707970).

Almost surely, 2^{6403261642371} is an apocalyptic number.

6403261642371 is a deficient number, since it is larger than the sum of its proper divisors (4072340340189).

6403261642371 is a wasteful number, since it uses less digits than its factorization.

6403261642371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8052036 (or 8052033 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 45.

The spelling of 6403261642371 in words is "six trillion, four hundred three billion, two hundred sixty-one million, six hundred forty-two thousand, three hundred seventy-one".