39970988693 has 8 divisors (see below), whose sum is σ = 44549709120. Its totient is φ = 35639766720.

The previous prime is 39970988689. The next prime is 39970988767. The reversal of 39970988693 is 39688907993.

39970988693 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 39970988693 - 2² = 39970988689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39970988623) 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, 61874273 + ... + 61874918.

It is an arithmetic number, because the mean of its divisors is an integer number (5568713640).

Almost surely, 2^39970988693 is an apocalyptic number.

It is an amenable number.

39970988693 is a deficient number, since it is larger than the sum of its proper divisors (4578720427).

39970988693 is a wasteful number, since it uses less digits than its factorization.

39970988693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123749227.

The product of its (nonzero) digits is 158723712, while the sum is 71.

The spelling of 39970988693 in words is "thirty-nine billion, nine hundred seventy million, nine hundred eighty-eight thousand, six hundred ninety-three".