1530749245500 has 384 divisors, whose sum is σ = 5033298816000. Its totient is φ = 401621068800.

The previous prime is 1530749245499. The next prime is 1530749245507. The reversal of 1530749245500 is 55429470351.

1530749245500 is a `hidden beast` number, since 1 + 5 + 3 + 0 + 7 + 4 + 92 + 4 + 550 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530749245507) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 212040891 + ... + 212048109.

It is an arithmetic number, because the mean of its divisors is an integer number (13107549000).

Almost surely, 2^{1530749245500} is an apocalyptic number.

1530749245500 is a gapful number since it is divisible by the number (10) 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 1530749245500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2516649408000).

1530749245500 is an abundant number, since it is smaller than the sum of its proper divisors (3502549570500).

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

1530749245500 is a wasteful number, since it uses less digits than its factorization.

1530749245500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7499 (or 7481 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The spelling of 1530749245500 in words is "one trillion, five hundred thirty billion, seven hundred forty-nine million, two hundred forty-five thousand, five hundred".