45314221621 has 8 divisors (see below), whose sum is σ = 45421322240. Its totient is φ = 45207179568.

The previous prime is 45314221577. The next prime is 45314221651. The reversal of 45314221621 is 12612241354.

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 45314221621 - 2⁹ = 45314221109 is a prime.

It is a super-2 number, since 2×45314221621² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45314221651) 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, 1793740 + ... + 1818826.

It is an arithmetic number, because the mean of its divisors is an integer number (5677665280).

Almost surely, 2^45314221621 is an apocalyptic number.

It is an amenable number.

45314221621 is a deficient number, since it is larger than the sum of its proper divisors (107100619).

45314221621 is a wasteful number, since it uses less digits than its factorization.

45314221621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29283.

The product of its digits is 11520, while the sum is 31.

Adding to 45314221621 its reverse (12612241354), we get a palindrome (57926462975).

The spelling of 45314221621 in words is "forty-five billion, three hundred fourteen million, two hundred twenty-one thousand, six hundred twenty-one".