1920153391428 has 192 divisors, whose sum is σ = 4824230297600. Its totient is φ = 592656704640.

The previous prime is 1920153391369. The next prime is 1920153391439. The reversal of 1920153391428 is 8241933510291.

It is a super-2 number, since 2×1920153391428² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 830874393 + ... + 830876703.

Almost surely, 2^{1920153391428} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1920153391428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2412115148800).

1920153391428 is an abundant number, since it is smaller than the sum of its proper divisors (2904076906172).

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

1920153391428 is a wasteful number, since it uses less digits than its factorization.

1920153391428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862 (or 2860 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 1920153391428 in words is "one trillion, nine hundred twenty billion, one hundred fifty-three million, three hundred ninety-one thousand, four hundred twenty-eight".