29454252891 has 16 divisors (see below), whose sum is σ = 45053336064. Its totient is φ = 16767002304.

The previous prime is 29454252889. The next prime is 29454252901. The reversal of 29454252891 is 19825245492.

It is not a de Polignac number, because 29454252891 - 2¹ = 29454252889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29454252691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2660986 + ... + 2672031.

It is an arithmetic number, because the mean of its divisors is an integer number (2815833504).

Almost surely, 2^29454252891 is an apocalyptic number.

29454252891 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

29454252891 is a deficient number, since it is larger than the sum of its proper divisors (15599083173).

29454252891 is a wasteful number, since it uses less digits than its factorization.

29454252891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5333290.

The product of its digits is 2073600, while the sum is 51.

The spelling of 29454252891 in words is "twenty-nine billion, four hundred fifty-four million, two hundred fifty-two thousand, eight hundred ninety-one".