39937287061 has 16 divisors (see below), whose sum is σ = 46123348480. Its totient is φ = 33872256000.

The previous prime is 39937287023. The next prime is 39937287113. The reversal of 39937287061 is 16078273993.

It is a happy number.

It is a 5-Lehmer number, since φ(39937287061) divides (39937287061-1)⁵.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39937287061 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39937286993 and 39937287011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39937287361) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 538165 + ... + 607861.

It is an arithmetic number, because the mean of its divisors is an integer number (2882709280).

Almost surely, 2^39937287061 is an apocalyptic number.

39937287061 is the 115380-th hex number.

It is an amenable number.

39937287061 is a deficient number, since it is larger than the sum of its proper divisors (6186061419).

39937287061 is a wasteful number, since it uses less digits than its factorization.

39937287061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70564.

The product of its (nonzero) digits is 3429216, while the sum is 55.

The spelling of 39937287061 in words is "thirty-nine billion, nine hundred thirty-seven million, two hundred eighty-seven thousand, sixty-one".