1968960997098 has 40 divisors (see below), whose sum is σ = 4421757413700. Its totient is φ = 654858570240.

The previous prime is 1968960997013. The next prime is 1968960997099. The reversal of 1968960997098 is 8907990698691.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1883336288409 + 85624708689 = 1372347^2 + 292617^2 .

It is a Harshad number since it is a multiple of its sum of digits (81).

It is not an unprimeable number, because it can be changed into a prime (1968960997099) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13461873 + ... + 13607348.

Almost surely, 2^{1968960997098} is an apocalyptic number.

1968960997098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1968960997098 is an abundant number, since it is smaller than the sum of its proper divisors (2452796416602).

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

1968960997098 is a wasteful number, since it uses less digits than its factorization.

1968960997098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27069684 (or 27069675 counting only the distinct ones).

The product of its (nonzero) digits is 952342272, while the sum is 81.

The spelling of 1968960997098 in words is "one trillion, nine hundred sixty-eight billion, nine hundred sixty million, nine hundred ninety-seven thousand, ninety-eight".