42441251450651 has 4 divisors (see below), whose sum is σ = 42460206902400. Its totient is φ = 42422295998904.

The previous prime is 42441251450639. The next prime is 42441251450699. The reversal of 42441251450651 is 15605415214424.

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

It is a cyclic number.

It is not a de Polignac number, because 42441251450651 - 2²² = 42441247256347 is a prime.

It is a super-3 number, since 3×42441251450651³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42441251450951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9477722516 + ... + 9477726993.

It is an arithmetic number, because the mean of its divisors is an integer number (10615051725600).

Almost surely, 2^{42441251450651} is an apocalyptic number.

42441251450651 is a deficient number, since it is larger than the sum of its proper divisors (18955451749).

42441251450651 is a wasteful number, since it uses less digits than its factorization.

42441251450651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18955451748.

The product of its (nonzero) digits is 768000, while the sum is 44.

The spelling of 42441251450651 in words is "forty-two trillion, four hundred forty-one billion, two hundred fifty-one million, four hundred fifty thousand, six hundred fifty-one".