42154232615 has 16 divisors (see below), whose sum is σ = 56529670176. Its totient is φ = 29909875200.

The previous prime is 42154232567. The next prime is 42154232657. The reversal of 42154232615 is 51623245124.

It is not a de Polignac number, because 42154232615 - 2⁶ = 42154232551 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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9344582 + ... + 9349091.

It is an arithmetic number, because the mean of its divisors is an integer number (3533104386).

Almost surely, 2^42154232615 is an apocalyptic number.

42154232615 is a deficient number, since it is larger than the sum of its proper divisors (14375437561).

42154232615 is a wasteful number, since it uses less digits than its factorization.

42154232615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18693730.

The product of its digits is 57600, while the sum is 35.

Adding to 42154232615 its reverse (51623245124), we get a palindrome (93777477739).

The spelling of 42154232615 in words is "forty-two billion, one hundred fifty-four million, two hundred thirty-two thousand, six hundred fifteen".