39887975807660 has 12 divisors (see below), whose sum is σ = 83764749196128. Its totient is φ = 15955190323056.

The previous prime is 39887975807627. The next prime is 39887975807711. The reversal of 39887975807660 is 6670857978893.

It is a super-2 number, since 2×39887975807660² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 997199395172 + ... + 997199395211.

It is an arithmetic number, because the mean of its divisors is an integer number (6980395766344).

Almost surely, 2^{39887975807660} is an apocalyptic number.

It is an amenable number.

39887975807660 is an abundant number, since it is smaller than the sum of its proper divisors (43876773388468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39887975807660 is a wasteful number, since it uses less digits than its factorization.

39887975807660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994398790392 (or 1994398790390 counting only the distinct ones).

The product of its (nonzero) digits is 7681443840, while the sum is 83.

The spelling of 39887975807660 in words is "thirty-nine trillion, eight hundred eighty-seven billion, nine hundred seventy-five million, eight hundred seven thousand, six hundred sixty".