39930517601 has 8 divisors (see below), whose sum is σ = 43003750440. Its totient is φ = 36857521152.

The previous prime is 39930517597. The next prime is 39930517619. The reversal of 39930517601 is 10671503993.

It can be written as a sum of positive squares in 4 ways, for example, as 875272225 + 39055245376 = 29585^2 + 197624^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39930517601 - 2² = 39930517597 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39930517691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461915 + ... + 541503.

It is an arithmetic number, because the mean of its divisors is an integer number (5375468805).

Almost surely, 2^39930517601 is an apocalyptic number.

It is an amenable number.

39930517601 is a deficient number, since it is larger than the sum of its proper divisors (3073232839).

39930517601 is a wasteful number, since it uses less digits than its factorization.

39930517601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118195.

The product of its (nonzero) digits is 153090, while the sum is 44.

The spelling of 39930517601 in words is "thirty-nine billion, nine hundred thirty million, five hundred seventeen thousand, six hundred one".