2002187446631 has 2 divisors, whose sum is σ = 2002187446632. Its totient is φ = 2002187446630.

The previous prime is 2002187446607. The next prime is 2002187446657. The reversal of 2002187446631 is 1366447812002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2002187446631 - 2¹⁰ = 2002187445607 is a prime.

It is a super-2 number, since 2×2002187446631² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2002187046631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001093723315 + 1001093723316.

It is an arithmetic number, because the mean of its divisors is an integer number (1001093723316).

Almost surely, 2^{2002187446631} is an apocalyptic number.

2002187446631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2002187446631 is an equidigital number, since it uses as much as digits as its factorization.

2002187446631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 2002187446631 in words is "two trillion, two billion, one hundred eighty-seven million, four hundred forty-six thousand, six hundred thirty-one".