1690321468530 has 32 divisors (see below), whose sum is σ = 4112343742464. Its totient is φ = 444577700736.

The previous prime is 1690321468529. The next prime is 1690321468559. The reversal of 1690321468530 is 358641230961.

It is a self number, because there is not a number n which added to its sum of digits gives 1690321468530.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385915954 + ... + 385920333.

It is an arithmetic number, because the mean of its divisors is an integer number (128510741952).

Almost surely, 2^{1690321468530} is an apocalyptic number.

1690321468530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1690321468530 is an abundant number, since it is smaller than the sum of its proper divisors (2422022273934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1690321468530 is a wasteful number, since it uses less digits than its factorization.

1690321468530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771836370.

The product of its (nonzero) digits is 933120, while the sum is 48.

The spelling of 1690321468530 in words is "one trillion, six hundred ninety billion, three hundred twenty-one million, four hundred sixty-eight thousand, five hundred thirty".