1968229189402 has 8 divisors (see below), whose sum is σ = 3374107181856. Its totient is φ = 843526795452.

The previous prime is 1968229189393. The next prime is 1968229189439. The reversal of 1968229189402 is 2049819228691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1968229189402² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70293899608 + ... + 70293899635.

It is an arithmetic number, because the mean of its divisors is an integer number (421763397732).

Almost surely, 2^{1968229189402} is an apocalyptic number.

1968229189402 is a deficient number, since it is larger than the sum of its proper divisors (1405877992454).

1968229189402 is a wasteful number, since it uses less digits than its factorization.

1968229189402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140587799252.

The product of its (nonzero) digits is 8957952, while the sum is 61.

The spelling of 1968229189402 in words is "one trillion, nine hundred sixty-eight billion, two hundred twenty-nine million, one hundred eighty-nine thousand, four hundred two".