1990646824810 has 16 divisors (see below), whose sum is σ = 4095044896896. Its totient is φ = 682507482768.

The previous prime is 1990646824807. The next prime is 1990646824819. The reversal of 1990646824810 is 184286460991.

It is a super-2 number, since 2×1990646824810² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1990646824819) 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, 14218905822 + ... + 14218905961.

It is an arithmetic number, because the mean of its divisors is an integer number (255940306056).

Almost surely, 2^{1990646824810} is an apocalyptic number.

1990646824810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1990646824810 is an abundant number, since it is smaller than the sum of its proper divisors (2104398072086).

1990646824810 is a wasteful number, since it uses less digits than its factorization.

1990646824810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28437811797.

The product of its (nonzero) digits is 5971968, while the sum is 58.

The spelling of 1990646824810 in words is "one trillion, nine hundred ninety billion, six hundred forty-six million, eight hundred twenty-four thousand, eight hundred ten".