2445701621 has 8 divisors (see below), whose sum is σ = 2668694688. Its totient is φ = 2222818000.

The previous prime is 2445701563. The next prime is 2445701623. The reversal of 2445701621 is 1261075442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2445701621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2445701623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23486 + ... + 73776.

It is an arithmetic number, because the mean of its divisors is an integer number (333586836).

Almost surely, 2^2445701621 is an apocalyptic number.

It is an amenable number.

2445701621 is a deficient number, since it is larger than the sum of its proper divisors (222993067).

2445701621 is a wasteful number, since it uses less digits than its factorization.

2445701621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54723.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 2445701621 is about 49454.0354369590. The cubic root of 2445701621 is about 1347.3109014869.

The spelling of 2445701621 in words is "two billion, four hundred forty-five million, seven hundred one thousand, six hundred twenty-one".