1989034806407 has 8 divisors (see below), whose sum is σ = 2170467939072. Its totient is φ = 1807703638200.

The previous prime is 1989034806397. The next prime is 1989034806443. The reversal of 1989034806407 is 7046084309891.

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

It is a cyclic number.

It is not a de Polignac number, because 1989034806407 - 2¹² = 1989034802311 is a prime.

It is a super-2 number, since 2×1989034806407² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1989034806467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25450319 + ... + 25528352.

It is an arithmetic number, because the mean of its divisors is an integer number (271308492384).

Almost surely, 2^{1989034806407} is an apocalyptic number.

1989034806407 is a deficient number, since it is larger than the sum of its proper divisors (181433132665).

1989034806407 is a wasteful number, since it uses less digits than its factorization.

1989034806407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50982229.

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 1989034806407 in words is "one trillion, nine hundred eighty-nine billion, thirty-four million, eight hundred six thousand, four hundred seven".