42212061698 has 4 divisors (see below), whose sum is σ = 63318092550. Its totient is φ = 21106030848.

The previous prime is 42212061649. The next prime is 42212061709. The reversal of 42212061698 is 89616021224.

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

It can be written as a sum of positive squares in only one way, i.e., 41405331289 + 806730409 = 203483^2 + 28403^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10553015423 + ... + 10553015426.

Almost surely, 2^42212061698 is an apocalyptic number.

42212061698 is a deficient number, since it is larger than the sum of its proper divisors (21106030852).

42212061698 is a wasteful number, since it uses less digits than its factorization.

42212061698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21106030851.

The product of its (nonzero) digits is 82944, while the sum is 41.

The spelling of 42212061698 in words is "forty-two billion, two hundred twelve million, sixty-one thousand, six hundred ninety-eight".