39685966958693 has 64 divisors (see below), whose sum is σ = 48140867303424. Its totient is φ = 32271402240000.

The previous prime is 39685966958689. The next prime is 39685966958713.

39685966958693 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 39685966958693 - 2² = 39685966958689 is a prime.

It is a super-3 number, since 3×39685966958693³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39685966958663) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 545377730 + ... + 545450492.

It is an arithmetic number, because the mean of its divisors is an integer number (752201051616).

Almost surely, 2^{39685966958693} is an apocalyptic number.

It is an amenable number.

39685966958693 is a deficient number, since it is larger than the sum of its proper divisors (8454900344731).

39685966958693 is a wasteful number, since it uses less digits than its factorization.

39685966958693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73626.

The product of its digits is 122444006400, while the sum is 92.

The spelling of 39685966958693 in words is "thirty-nine trillion, six hundred eighty-five billion, nine hundred sixty-six million, nine hundred fifty-eight thousand, six hundred ninety-three".