1891429189082 has 8 divisors (see below), whose sum is σ = 2857554890400. Its totient is φ = 938910892284.

The previous prime is 1891429189057. The next prime is 1891429189121. The reversal of 1891429189082 is 2809819241981.

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

It is a super-2 number, since 2×1891429189082² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3401850782 + ... + 3401851337.

It is an arithmetic number, because the mean of its divisors is an integer number (357194361300).

Almost surely, 2^{1891429189082} is an apocalyptic number.

1891429189082 is a deficient number, since it is larger than the sum of its proper divisors (966125701318).

1891429189082 is a wasteful number, since it uses less digits than its factorization.

1891429189082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6803702260.

The product of its (nonzero) digits is 5971968, while the sum is 62.

The spelling of 1891429189082 in words is "one trillion, eight hundred ninety-one billion, four hundred twenty-nine million, one hundred eighty-nine thousand, eighty-two".