1920181910102 has 8 divisors (see below), whose sum is σ = 2882132310000. Its totient is φ = 959471140104.

The previous prime is 1920181910093. The next prime is 1920181910107. The reversal of 1920181910102 is 2010191810291.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920181910107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309903602 + ... + 309909797.

It is an arithmetic number, because the mean of its divisors is an integer number (360266538750).

Almost surely, 2^{1920181910102} is an apocalyptic number.

1920181910102 is a deficient number, since it is larger than the sum of its proper divisors (961950399898).

1920181910102 is a wasteful number, since it uses less digits than its factorization.

1920181910102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619814950.

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 1920181910102 in words is "one trillion, nine hundred twenty billion, one hundred eighty-one million, nine hundred ten thousand, one hundred two".