5435451021 has 96 divisors (see below), whose sum is σ = 10338306048. Its totient is φ = 2452700160.

The previous prime is 5435451017. The next prime is 5435451031. The reversal of 5435451021 is 1201545345.

It is not a de Polignac number, because 5435451021 - 2² = 5435451017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5435451021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5435451031) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 864736 + ... + 870998.

It is an arithmetic number, because the mean of its divisors is an integer number (107690688).

Almost surely, 2^5435451021 is an apocalyptic number.

5435451021 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5435451021 is a deficient number, since it is larger than the sum of its proper divisors (4902855027).

5435451021 is a wasteful number, since it uses less digits than its factorization.

5435451021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6331 (or 6314 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 5435451021 is about 73725.5113308819. The cubic root of 5435451021 is about 1758.2415094645.

Adding to 5435451021 its reverse (1201545345), we get a palindrome (6636996366).

The spelling of 5435451021 in words is "five billion, four hundred thirty-five million, four hundred fifty-one thousand, twenty-one".