42102623534 has 4 divisors (see below), whose sum is σ = 63153935304. Its totient is φ = 21051311766.

The previous prime is 42102623513. The next prime is 42102623561. The reversal of 42102623534 is 43532620124.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 42102623534.

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 as a sum of consecutive naturals, namely, 10525655882 + ... + 10525655885.

It is an arithmetic number, because the mean of its divisors is an integer number (15788483826).

Almost surely, 2^42102623534 is an apocalyptic number.

42102623534 is a deficient number, since it is larger than the sum of its proper divisors (21051311770).

42102623534 is a wasteful number, since it uses less digits than its factorization.

42102623534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21051311769.

The product of its (nonzero) digits is 34560, while the sum is 32.

The spelling of 42102623534 in words is "forty-two billion, one hundred two million, six hundred twenty-three thousand, five hundred thirty-four".