1956989966288 has 20 divisors (see below), whose sum is σ = 4333334925600. Its totient is φ = 838709985504.

The previous prime is 1956989966287. The next prime is 1956989966303. The reversal of 1956989966288 is 8826699896591.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1956989966287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8736562238 + ... + 8736562461.

It is an arithmetic number, because the mean of its divisors is an integer number (216666746280).

Almost surely, 2^{1956989966288} is an apocalyptic number.

It is an amenable number.

1956989966288 is an abundant number, since it is smaller than the sum of its proper divisors (2376344959312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1956989966288 is a wasteful number, since it uses less digits than its factorization.

1956989966288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17473124714 (or 17473124708 counting only the distinct ones).

The product of its digits is 7255941120, while the sum is 86.

The spelling of 1956989966288 in words is "one trillion, nine hundred fifty-six billion, nine hundred eighty-nine million, nine hundred sixty-six thousand, two hundred eighty-eight".