1690537705422 has 8 divisors (see below), whose sum is σ = 3381075410856. Its totient is φ = 563512568472.

The previous prime is 1690537705421. The next prime is 1690537705447. The reversal of 1690537705422 is 2245077350961.

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

1690537705422 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1690537705421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140878142113 + ... + 140878142124.

It is an arithmetic number, because the mean of its divisors is an integer number (422634426357).

Almost surely, 2^{1690537705422} is an apocalyptic number.

1690537705422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1690537705422 is a wasteful number, since it uses less digits than its factorization.

1690537705422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281756284242.

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 1690537705422 in words is "one trillion, six hundred ninety billion, five hundred thirty-seven million, seven hundred five thousand, four hundred twenty-two".