42451054414361 has 4 divisors (see below), whose sum is σ = 43252017705252. Its totient is φ = 41650091123472.

The previous prime is 42451054414313. The next prime is 42451054414367. The reversal of 42451054414361 is 16341445015424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16962248175625 + 25488806238736 = 4118525^2 + 5048644^2 .

It is a cyclic number.

It is not a de Polignac number, because 42451054414361 - 2¹⁸ = 42451054152217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42451054414367) 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, 400481645366 + ... + 400481645471.

It is an arithmetic number, because the mean of its divisors is an integer number (10813004426313).

Almost surely, 2^{42451054414361} is an apocalyptic number.

It is an amenable number.

42451054414361 is a deficient number, since it is larger than the sum of its proper divisors (800963290891).

42451054414361 is an equidigital number, since it uses as much as digits as its factorization.

42451054414361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800963290890.

The product of its (nonzero) digits is 921600, while the sum is 44.

Adding to 42451054414361 its reverse (16341445015424), we get a palindrome (58792499429785).

The spelling of 42451054414361 in words is "forty-two trillion, four hundred fifty-one billion, fifty-four million, four hundred fourteen thousand, three hundred sixty-one".