3896622669428 has 6 divisors (see below), whose sum is σ = 6819089671506. Its totient is φ = 1948311334712.

The previous prime is 3896622669419. The next prime is 3896622669439. The reversal of 3896622669428 is 8249662266983.

It can be written as a sum of positive squares in only one way, i.e., 3670895057764 + 225727611664 = 1915958^2 + 475108^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487077833675 + ... + 487077833682.

It is an arithmetic number, because the mean of its divisors is an integer number (1136514945251).

Almost surely, 2^{3896622669428} is an apocalyptic number.

It is an amenable number.

3896622669428 is a deficient number, since it is larger than the sum of its proper divisors (2922467002078).

3896622669428 is a wasteful number, since it uses less digits than its factorization.

3896622669428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974155667361 (or 974155667359 counting only the distinct ones).

The product of its digits is 644972544, while the sum is 71.

The spelling of 3896622669428 in words is "three trillion, eight hundred ninety-six billion, six hundred twenty-two million, six hundred sixty-nine thousand, four hundred twenty-eight".