1631620968752 has 10 divisors (see below), whose sum is σ = 3161265626988. Its totient is φ = 815810484368.

The previous prime is 1631620968749. The next prime is 1631620968793. The reversal of 1631620968752 is 2578690261361.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50988155258 + ... + 50988155289.

Almost surely, 2^{1631620968752} is an apocalyptic number.

It is an amenable number.

1631620968752 is a deficient number, since it is larger than the sum of its proper divisors (1529644658236).

1631620968752 is a wasteful number, since it uses less digits than its factorization.

1631620968752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101976310555 (or 101976310549 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 1631620968752 in words is "one trillion, six hundred thirty-one billion, six hundred twenty million, nine hundred sixty-eight thousand, seven hundred fifty-two".