39159840379445 has 16 divisors (see below), whose sum is σ = 47127988954368. Its totient is φ = 31237088208960.

The previous prime is 39159840379417. The next prime is 39159840379477. The reversal of 39159840379445 is 54497304895193.

It is a de Polignac number, because none of the positive numbers 2^k-39159840379445 is a prime.

It is a super-2 number, since 2×39159840379445² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138236900 + ... + 138519890.

It is an arithmetic number, because the mean of its divisors is an integer number (2945499309648).

Almost surely, 2^{39159840379445} is an apocalyptic number.

It is an amenable number.

39159840379445 is a deficient number, since it is larger than the sum of its proper divisors (7968148574923).

39159840379445 is a wasteful number, since it uses less digits than its factorization.

39159840379445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363100.

The product of its (nonzero) digits is 587865600, while the sum is 71.

The spelling of 39159840379445 in words is "thirty-nine trillion, one hundred fifty-nine billion, eight hundred forty million, three hundred seventy-nine thousand, four hundred forty-five".