39191468042 has 8 divisors (see below), whose sum is σ = 60376045476. Its totient is φ = 19066119552.

The previous prime is 39191468023. The next prime is 39191468051. The reversal of 39191468042 is 24086419193.

It can be written as a sum of positive squares in 2 ways, for example, as 39184598401 + 6869641 = 197951^2 + 2621^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264807143 + ... + 264807290.

Almost surely, 2^39191468042 is an apocalyptic number.

39191468042 is a deficient number, since it is larger than the sum of its proper divisors (21184577434).

39191468042 is a wasteful number, since it uses less digits than its factorization.

39191468042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529614472.

The product of its (nonzero) digits is 373248, while the sum is 47.

The spelling of 39191468042 in words is "thirty-nine billion, one hundred ninety-one million, four hundred sixty-eight thousand, forty-two".