3951280652 has 18 divisors (see below), whose sum is σ = 7600501524. Its totient is φ = 1796036440.

The previous prime is 3951280649. The next prime is 3951280667. The reversal of 3951280652 is 2560821593.

It is a super-2 number, since 2×3951280652² = 31225237581739090208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4081418 + ... + 4082385.

Almost surely, 2^3951280652 is an apocalyptic number.

It is an amenable number.

3951280652 is a deficient number, since it is larger than the sum of its proper divisors (3649220872).

3951280652 is a wasteful number, since it uses less digits than its factorization.

3951280652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8163829 (or 8163816 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 3951280652 is about 62859.2129444841. The cubic root of 3951280652 is about 1580.9299460617.

The spelling of 3951280652 in words is "three billion, nine hundred fifty-one million, two hundred eighty thousand, six hundred fifty-two".