39819118011 has 4 divisors (see below), whose sum is σ = 53092157352. Its totient is φ = 26546078672.

The previous prime is 39819117991. The next prime is 39819118013. The reversal of 39819118011 is 11081191893.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39819118011 is a prime.

It is a super-2 number, since 2×39819118011² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39819118013) by changing a digit.

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, 6636519666 + ... + 6636519671.

It is an arithmetic number, because the mean of its divisors is an integer number (13273039338).

Almost surely, 2^39819118011 is an apocalyptic number.

39819118011 is a deficient number, since it is larger than the sum of its proper divisors (13273039341).

39819118011 is a wasteful number, since it uses less digits than its factorization.

39819118011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13273039340.

The product of its (nonzero) digits is 15552, while the sum is 42.

The spelling of 39819118011 in words is "thirty-nine billion, eight hundred nineteen million, one hundred eighteen thousand, eleven".