352691491389 has 16 divisors (see below), whose sum is σ = 504738191232. Its totient is φ = 218265159168.

The previous prime is 352691491381. The next prime is 352691491447. The reversal of 352691491389 is 983194196253.

It is not a de Polignac number, because 352691491389 - 2³ = 352691491381 is a prime.

It is a super-2 number, since 2×352691491389² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352691491381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47362849 + ... + 47370294.

It is an arithmetic number, because the mean of its divisors is an integer number (31546136952).

Almost surely, 2^352691491389 is an apocalyptic number.

It is an amenable number.

352691491389 is a deficient number, since it is larger than the sum of its proper divisors (152046699843).

352691491389 is a wasteful number, since it uses less digits than its factorization.

352691491389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94733236.

The product of its digits is 12597120, while the sum is 60.

The spelling of 352691491389 in words is "three hundred fifty-two billion, six hundred ninety-one million, four hundred ninety-one thousand, three hundred eighty-nine".