39992632772 has 6 divisors (see below), whose sum is σ = 69987107358. Its totient is φ = 19996316384.

The previous prime is 39992632741. The next prime is 39992632817. The reversal of 39992632772 is 27723629993.

It can be written as a sum of positive squares in only one way, i.e., 20939247616 + 19053385156 = 144704^2 + 138034^2 .

It is a super-3 number, since 3×39992632772³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4999079093 + ... + 4999079100.

It is an arithmetic number, because the mean of its divisors is an integer number (11664517893).

Almost surely, 2^39992632772 is an apocalyptic number.

It is an amenable number.

39992632772 is a deficient number, since it is larger than the sum of its proper divisors (29994474586).

39992632772 is a wasteful number, since it uses less digits than its factorization.

39992632772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9998158197 (or 9998158195 counting only the distinct ones).

The product of its digits is 15431472, while the sum is 59.

The spelling of 39992632772 in words is "thirty-nine billion, nine hundred ninety-two million, six hundred thirty-two thousand, seven hundred seventy-two".