1619022101772 has 48 divisors (see below), whose sum is σ = 3903168561152. Its totient is φ = 521784599040.

The previous prime is 1619022101771. The next prime is 1619022101797. The reversal of 1619022101772 is 2771012209161.

It is a self number, because there is not a number n which added to its sum of digits gives 1619022101772.

It is not an unprimeable number, because it can be changed into a prime (1619022101771) 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 15 ways as a sum of consecutive naturals, for example, 1597573 + ... + 2406300.

Almost surely, 2^{1619022101772} is an apocalyptic number.

1619022101772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1619022101772 is an abundant number, since it is smaller than the sum of its proper divisors (2284146459380).

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

1619022101772 is a wasteful number, since it uses less digits than its factorization.

1619022101772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4004998 (or 4004996 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 39.

The spelling of 1619022101772 in words is "one trillion, six hundred nineteen billion, twenty-two million, one hundred one thousand, seven hundred seventy-two".