3967278040736 has 12 divisors (see below), whose sum is σ = 7810578642762. Its totient is φ = 1983639020352.

The previous prime is 3967278040723. The next prime is 3967278040741. The reversal of 3967278040736 is 6370408727693.

It can be written as a sum of positive squares in only one way, i.e., 3961294090000 + 5983950736 = 1990300^2 + 77356^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61988719355 + ... + 61988719418.

Almost surely, 2^{3967278040736} is an apocalyptic number.

It is an amenable number.

3967278040736 is a deficient number, since it is larger than the sum of its proper divisors (3843300602026).

3967278040736 is a wasteful number, since it uses less digits than its factorization.

3967278040736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123977438783 (or 123977438775 counting only the distinct ones).

The product of its (nonzero) digits is 64012032, while the sum is 62.

The spelling of 3967278040736 in words is "three trillion, nine hundred sixty-seven billion, two hundred seventy-eight million, forty thousand, seven hundred thirty-six".