1889729001216 has 216 divisors, whose sum is σ = 6500631434640. Its totient is φ = 539922475008.

The previous prime is 1889729001137. The next prime is 1889729001217. The reversal of 1889729001216 is 6121009279881.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (216).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1889729001217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2451091 + ... + 3128466.

Almost surely, 2^{1889729001216} is an apocalyptic number.

1889729001216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1889729001216 is an abundant number, since it is smaller than the sum of its proper divisors (4610902433424).

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

1889729001216 is an equidigital number, since it uses as much as digits as its factorization.

1889729001216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5579596 (or 5579569 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 54.

The spelling of 1889729001216 in words is "one trillion, eight hundred eighty-nine billion, seven hundred twenty-nine million, one thousand, two hundred sixteen".