5405889891 has 8 divisors (see below), whose sum is σ = 7631844624. Its totient is φ = 3391930880.

The previous prime is 5405889877. The next prime is 5405889901. The reversal of 5405889891 is 1989885045.

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 5405889891 - 2⁵ = 5405889859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5405889091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52998870 + ... + 52998971.

It is an arithmetic number, because the mean of its divisors is an integer number (953980578).

Almost surely, 2^5405889891 is an apocalyptic number.

5405889891 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5405889891 is a deficient number, since it is larger than the sum of its proper divisors (2225954733).

5405889891 is a wasteful number, since it uses less digits than its factorization.

5405889891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105997861.

The product of its (nonzero) digits is 4147200, while the sum is 57.

The square root of 5405889891 is about 73524.7569938181. The cubic root of 5405889891 is about 1755.0482684105.

The spelling of 5405889891 in words is "five billion, four hundred five million, eight hundred eighty-nine thousand, eight hundred ninety-one".