3972949887076 has 27 divisors (see below), whose sum is σ = 7268262734803. Its totient is φ = 1900062616760.

The previous prime is 3972949887031. The next prime is 3972949887083. The reversal of 3972949887076 is 6707889492793.

The square root of 3972949887076 is 1993226.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3972949886987 and 3972949887005.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 91666731 + ... + 91710061.

Almost surely, 2^{3972949887076} is an apocalyptic number.

3972949887076 is the 1993226-th square number.

It is an amenable number.

3972949887076 is a deficient number, since it is larger than the sum of its proper divisors (3295312847727).

3972949887076 is an frugal number, since it uses more digits than its factorization.

3972949887076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86712 (or 43356 counting only the distinct ones).

The product of its (nonzero) digits is 2304433152, while the sum is 79.

The spelling of 3972949887076 in words is "three trillion, nine hundred seventy-two billion, nine hundred forty-nine million, eight hundred eighty-seven thousand, seventy-six".