6465356261131 has 4 divisors (see below), whose sum is σ = 6465397984632. Its totient is φ = 6465314537632.

The previous prime is 6465356261087. The next prime is 6465356261191. The reversal of 6465356261131 is 1311626535646.

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 6465356261131 - 2⁹ = 6465356260619 is a prime.

It is a super-2 number, since 2×6465356261131² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6465356261191) 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, 20628445 + ... + 20939518.

It is an arithmetic number, because the mean of its divisors is an integer number (1616349496158).

Almost surely, 2^{6465356261131} is an apocalyptic number.

6465356261131 is a deficient number, since it is larger than the sum of its proper divisors (41723501).

6465356261131 is a wasteful number, since it uses less digits than its factorization.

6465356261131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41723500.

The product of its digits is 2332800, while the sum is 49.

The spelling of 6465356261131 in words is "six trillion, four hundred sixty-five billion, three hundred fifty-six million, two hundred sixty-one thousand, one hundred thirty-one".