1534020191928 has 192 divisors, whose sum is σ = 4933489317120. Its totient is φ = 437448211200.

The previous prime is 1534020191897. The next prime is 1534020191929. The reversal of 1534020191928 is 8291910204351.

1534020191928 is a `hidden beast` number, since 1 + 53 + 402 + 0 + 1 + 9 + 192 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1534020191929) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6981583 + ... + 7197953.

It is an arithmetic number, because the mean of its divisors is an integer number (25695256860).

Almost surely, 2^{1534020191928} is an apocalyptic number.

1534020191928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1534020191928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2466744658560).

1534020191928 is an abundant number, since it is smaller than the sum of its proper divisors (3399469125192).

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

1534020191928 is a wasteful number, since it uses less digits than its factorization.

1534020191928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216920 (or 216904 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 1534020191928 in words is "one trillion, five hundred thirty-four billion, twenty million, one hundred ninety-one thousand, nine hundred twenty-eight".