1631327291641 has 8 divisors (see below), whose sum is σ = 1776399955200. Its totient is φ = 1492175961360.

The previous prime is 1631327291609. The next prime is 1631327291701. The reversal of 1631327291641 is 1461927231361.

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

It is a cyclic number.

It is not a de Polignac number, because 1631327291641 - 2⁵ = 1631327291609 is a prime.

It is a super-2 number, since 2×1631327291641² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1631327291591 and 1631327291600.

It is not an unprimeable number, because it can be changed into a prime (1631327291141) 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, 1480332745 + ... + 1480333846.

It is an arithmetic number, because the mean of its divisors is an integer number (222049994400).

Almost surely, 2^{1631327291641} is an apocalyptic number.

It is an amenable number.

1631327291641 is a deficient number, since it is larger than the sum of its proper divisors (145072663559).

1631327291641 is a wasteful number, since it uses less digits than its factorization.

1631327291641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960666639.

The product of its digits is 326592, while the sum is 46.

The spelling of 1631327291641 in words is "one trillion, six hundred thirty-one billion, three hundred twenty-seven million, two hundred ninety-one thousand, six hundred forty-one".