39746971641 has 32 divisors (see below), whose sum is σ = 59233426560. Its totient is φ = 23539106304.

The previous prime is 39746971591. The next prime is 39746971657. The reversal of 39746971641 is 14617964793.

39746971641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39746971641 - 2¹⁰ = 39746970617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39746971681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 289981 + ... + 404453.

It is an arithmetic number, because the mean of its divisors is an integer number (1851044580).

Almost surely, 2^39746971641 is an apocalyptic number.

It is an amenable number.

39746971641 is a deficient number, since it is larger than the sum of its proper divisors (19486454919).

39746971641 is a wasteful number, since it uses less digits than its factorization.

39746971641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114825.

The product of its digits is 6858432, while the sum is 57.

The spelling of 39746971641 in words is "thirty-nine billion, seven hundred forty-six million, nine hundred seventy-one thousand, six hundred forty-one".