39487011969 has 4 divisors (see below), whose sum is σ = 52649349296. Its totient is φ = 26324674644.

The previous prime is 39487011913. The next prime is 39487011989. The reversal of 39487011969 is 96911078493.

39487011969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 39487011969 - 2⁸ = 39487011713 is a prime.

It is a super-2 number, since 2×39487011969² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39487011989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6581168659 + ... + 6581168664.

It is an arithmetic number, because the mean of its divisors is an integer number (13162337324).

Almost surely, 2^39487011969 is an apocalyptic number.

It is an amenable number.

39487011969 is a deficient number, since it is larger than the sum of its proper divisors (13162337327).

39487011969 is a wasteful number, since it uses less digits than its factorization.

39487011969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13162337326.

The product of its (nonzero) digits is 2939328, while the sum is 57.

The spelling of 39487011969 in words is "thirty-nine billion, four hundred eighty-seven million, eleven thousand, nine hundred sixty-nine".