442504196951658 has 16 divisors (see below), whose sum is σ = 885022926553056. Its totient is φ = 147498976875600.

The previous prime is 442504196951653. The next prime is 442504196951693. The reversal of 442504196951658 is 856159691405244.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 442504196951592 and 442504196951601.

It is not an unprimeable number, because it can be changed into a prime (442504196951653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 605131216 + ... + 605862027.

It is an arithmetic number, because the mean of its divisors is an integer number (55313932909566).

Almost surely, 2^{442504196951658} is an apocalyptic number.

442504196951658 is an abundant number, since it is smaller than the sum of its proper divisors (442518729601398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442504196951658 is a wasteful number, since it uses less digits than its factorization.

442504196951658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211054149.

The product of its (nonzero) digits is 373248000, while the sum is 69.

The spelling of 442504196951658 in words is "four hundred forty-two trillion, five hundred four billion, one hundred ninety-six million, nine hundred fifty-one thousand, six hundred fifty-eight".