43251630450401 has 4 divisors (see below), whose sum is σ = 43294075623600. Its totient is φ = 43209185277204.

The previous prime is 43251630450389. The next prime is 43251630450433. The reversal of 43251630450401 is 10405403615234.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43251630450401 - 2¹⁴ = 43251630434017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43251630458401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21222585071 + ... + 21222587108.

It is an arithmetic number, because the mean of its divisors is an integer number (10823518905900).

Almost surely, 2^{43251630450401} is an apocalyptic number.

It is an amenable number.

43251630450401 is a deficient number, since it is larger than the sum of its proper divisors (42445173199).

43251630450401 is a wasteful number, since it uses less digits than its factorization.

43251630450401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42445173198.

The product of its (nonzero) digits is 172800, while the sum is 38.

The spelling of 43251630450401 in words is "forty-three trillion, two hundred fifty-one billion, six hundred thirty million, four hundred fifty thousand, four hundred one".