442640145032465 has 8 divisors (see below), whose sum is σ = 562413360747240. Its totient is φ = 333281991553792.

The previous prime is 442640145032401. The next prime is 442640145032479. The reversal of 442640145032465 is 564230541046244.

It can be written as a sum of positive squares in 4 ways, for example, as 20217460082689 + 422422684949776 = 4496383^2 + 20552924^2 .

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

It is not a de Polignac number, because 442640145032465 - 2⁶ = 442640145032401 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2603765558930 + ... + 2603765559099.

It is an arithmetic number, because the mean of its divisors is an integer number (70301670093405).

Almost surely, 2^{442640145032465} is an apocalyptic number.

It is an amenable number.

442640145032465 is a deficient number, since it is larger than the sum of its proper divisors (119773215714775).

442640145032465 is a wasteful number, since it uses less digits than its factorization.

442640145032465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5207531118051.

The product of its (nonzero) digits is 11059200, while the sum is 50.

The spelling of 442640145032465 in words is "four hundred forty-two trillion, six hundred forty billion, one hundred forty-five million, thirty-two thousand, four hundred sixty-five".