42012615623065 has 8 divisors (see below), whose sum is σ = 50429824215048. Its totient is φ = 33600302186880.

The previous prime is 42012615623051. The next prime is 42012615623081. The reversal of 42012615623065 is 56032651621024.

It can be written as a sum of positive squares in 4 ways, for example, as 2372659638336 + 39639955984729 = 1540344^2 + 6296027^2 .

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

It is not a de Polignac number, because 42012615623065 - 2¹⁹ = 42012615098777 is a prime.

It is a Duffinian 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, 1223770066 + ... + 1223804395.

It is an arithmetic number, because the mean of its divisors is an integer number (6303728026881).

Almost surely, 2^{42012615623065} is an apocalyptic number.

It is an amenable number.

42012615623065 is a deficient number, since it is larger than the sum of its proper divisors (8417208591983).

42012615623065 is a wasteful number, since it uses less digits than its factorization.

42012615623065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447577899.

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 42012615623065 in words is "forty-two trillion, twelve billion, six hundred fifteen million, six hundred twenty-three thousand, sixty-five".