42551147615 has 24 divisors (see below), whose sum is σ = 55628731008. Its totient is φ = 31208950080.

The previous prime is 42551147563. The next prime is 42551147623. The reversal of 42551147615 is 51674115524.

It is a de Polignac number, because none of the positive numbers 2^k-42551147615 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 324272 + ... + 436181.

It is an arithmetic number, because the mean of its divisors is an integer number (2317863792).

Almost surely, 2^42551147615 is an apocalyptic number.

42551147615 is a deficient number, since it is larger than the sum of its proper divisors (13077583393).

42551147615 is a wasteful number, since it uses less digits than its factorization.

42551147615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760527 (or 760508 counting only the distinct ones).

The product of its digits is 168000, while the sum is 41.

The spelling of 42551147615 in words is "forty-two billion, five hundred fifty-one million, one hundred forty-seven thousand, six hundred fifteen".