3917129722276 has 27 divisors (see below), whose sum is σ = 7282055697217. Its totient is φ = 1843323496640.

The previous prime is 3917129722273. The next prime is 3917129722277. The reversal of 3917129722276 is 6722279217193.

The square root of 3917129722276 is 1979174.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 3049668468900 + 867461253376 = 1746330^2 + 931376^2 .

It is a super-2 number, since 2×3917129722276² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3917129722276.

It is not an unprimeable number, because it can be changed into a prime (3917129722273) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 67262811 + ... + 67321021.

Almost surely, 2^{3917129722276} is an apocalyptic number.

3917129722276 is the 1979174-th square number.

It is an amenable number.

3917129722276 is a deficient number, since it is larger than the sum of its proper divisors (3364925974941).

3917129722276 is an frugal number, since it uses more digits than its factorization.

3917129722276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116460 (or 58230 counting only the distinct ones).

The product of its digits is 8001504, while the sum is 58.

The spelling of 3917129722276 in words is "three trillion, nine hundred seventeen billion, one hundred twenty-nine million, seven hundred twenty-two thousand, two hundred seventy-six".