29145891489 has 64 divisors (see below), whose sum is σ = 48506653440. Its totient is φ = 15317406720.

The previous prime is 29145891473. The next prime is 29145891517. The reversal of 29145891489 is 98419854192.

It is not a de Polignac number, because 29145891489 - 2⁴ = 29145891473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29145891389) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 428659 + ... + 491975.

It is an arithmetic number, because the mean of its divisors is an integer number (757916460).

Almost surely, 2^29145891489 is an apocalyptic number.

29145891489 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

29145891489 is a deficient number, since it is larger than the sum of its proper divisors (19360761951).

29145891489 is a wasteful number, since it uses less digits than its factorization.

29145891489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63410.

The product of its digits is 7464960, while the sum is 60.

The spelling of 29145891489 in words is "twenty-nine billion, one hundred forty-five million, eight hundred ninety-one thousand, four hundred eighty-nine".