1689952356402 has 64 divisors (see below), whose sum is σ = 3549043814400. Its totient is φ = 535758834240.

The previous prime is 1689952356383. The next prime is 1689952356403. The reversal of 1689952356402 is 2046532599861.

It is not an unprimeable number, because it can be changed into a prime (1689952356403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44085348 + ... + 44123664.

It is an arithmetic number, because the mean of its divisors is an integer number (55453809600).

Almost surely, 2^{1689952356402} is an apocalyptic number.

1689952356402 is an abundant number, since it is smaller than the sum of its proper divisors (1859091457998).

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

1689952356402 is a wasteful number, since it uses less digits than its factorization.

1689952356402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42431.

The product of its (nonzero) digits is 27993600, while the sum is 60.

The spelling of 1689952356402 in words is "one trillion, six hundred eighty-nine billion, nine hundred fifty-two million, three hundred fifty-six thousand, four hundred two".