2162809420988 has 12 divisors (see below), whose sum is σ = 3784961317032. Its totient is φ = 1081391901840.

The previous prime is 2162809420957. The next prime is 2162809421027. The reversal of 2162809420988 is 8890249082612.

It is a super-2 number, since 2×2162809420988² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2817095 + ... + 3501662.

It is an arithmetic number, because the mean of its divisors is an integer number (315413443086).

Almost surely, 2^{2162809420988} is an apocalyptic number.

It is an amenable number.

2162809420988 is a deficient number, since it is larger than the sum of its proper divisors (1622151896044).

2162809420988 is a wasteful number, since it uses less digits than its factorization.

2162809420988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6404332 (or 6404330 counting only the distinct ones).

The product of its (nonzero) digits is 7962624, while the sum is 59.

The spelling of 2162809420988 in words is "two trillion, one hundred sixty-two billion, eight hundred nine million, four hundred twenty thousand, nine hundred eighty-eight".