45351452021 has 8 divisors (see below), whose sum is σ = 45957975840. Its totient is φ = 44748932112.

The previous prime is 45351452011. The next prime is 45351452087. The reversal of 45351452021 is 12025415354.

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 45351452021 - 2²² = 45347257717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45351452011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 978170 + ... + 1023483.

It is an arithmetic number, because the mean of its divisors is an integer number (5744746980).

Almost surely, 2^45351452021 is an apocalyptic number.

It is an amenable number.

45351452021 is a deficient number, since it is larger than the sum of its proper divisors (606523819).

45351452021 is a wasteful number, since it uses less digits than its factorization.

45351452021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001955.

The product of its (nonzero) digits is 24000, while the sum is 32.

Adding to 45351452021 its reverse (12025415354), we get a palindrome (57376867375).

The spelling of 45351452021 in words is "forty-five billion, three hundred fifty-one million, four hundred fifty-two thousand, twenty-one".