45042202421 has 8 divisors (see below), whose sum is σ = 47771061504. Its totient is φ = 42377551920.

The previous prime is 45042202417. The next prime is 45042202453. The reversal of 45042202421 is 12420224054.

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 45042202421 - 2² = 45042202417 is a prime.

It is a super-2 number, since 2×45042202421² (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 (45042202021) 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, 16050701 + ... + 16053506.

It is an arithmetic number, because the mean of its divisors is an integer number (5971382688).

Almost surely, 2^45042202421 is an apocalyptic number.

It is an amenable number.

45042202421 is a deficient number, since it is larger than the sum of its proper divisors (2728859083).

45042202421 is a wasteful number, since it uses less digits than its factorization.

45042202421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32104291.

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 45042202421 its reverse (12420224054), we get a palindrome (57462426475).

The spelling of 45042202421 in words is "forty-five billion, forty-two million, two hundred two thousand, four hundred twenty-one".