45209512530 has 640 divisors, whose sum is σ = 160353768960. Its totient is φ = 8868372480.

The previous prime is 45209512507. The next prime is 45209512549. The reversal of 45209512530 is 3521590254.

It is a happy number.

45209512530 is a `hidden beast` number, since 4 + 5 + 20 + 95 + 12 + 530 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 136584465 + ... + 136584795.

It is an arithmetic number, because the mean of its divisors is an integer number (250552764).

Almost surely, 2^45209512530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45209512530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80176884480).

45209512530 is an abundant number, since it is smaller than the sum of its proper divisors (115144256430).

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

45209512530 is a wasteful number, since it uses less digits than its factorization.

45209512530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 45209512530 in words is "forty-five billion, two hundred nine million, five hundred twelve thousand, five hundred thirty".