44603436421 has 2 divisors, whose sum is σ = 44603436422. Its totient is φ = 44603436420.

The previous prime is 44603436403. The next prime is 44603436443. The reversal of 44603436421 is 12463430644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42298092225 + 2305344196 = 205665^2 + 48014^2 .

It is a cyclic number.

It is not a de Polignac number, because 44603436421 - 2²⁵ = 44569881989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44603436221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22301718210 + 22301718211.

It is an arithmetic number, because the mean of its divisors is an integer number (22301718211).

Almost surely, 2^44603436421 is an apocalyptic number.

It is an amenable number.

44603436421 is a deficient number, since it is larger than the sum of its proper divisors (1).

44603436421 is an equidigital number, since it uses as much as digits as its factorization.

44603436421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 165888, while the sum is 37.

The spelling of 44603436421 in words is "forty-four billion, six hundred three million, four hundred thirty-six thousand, four hundred twenty-one".