424991731500 has 480 divisors, whose sum is σ = 1595414620800. Its totient is φ = 96479424000.

The previous prime is 424991731459. The next prime is 424991731513. The reversal of 424991731500 is 5137199424.

424991731500 is a `hidden beast` number, since 4 + 2 + 499 + 1 + 7 + 3 + 150 + 0 = 666.

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

It is an unprimeable number.

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 159 ways as a sum of consecutive naturals, for example, 42236470 + ... + 42246530.

It is an arithmetic number, because the mean of its divisors is an integer number (3323780460).

Almost surely, 2^424991731500 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 424991731500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (797707310400).

424991731500 is an abundant number, since it is smaller than the sum of its proper divisors (1170422889300).

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

424991731500 is a wasteful number, since it uses less digits than its factorization.

424991731500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10248 (or 10227 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The spelling of 424991731500 in words is "four hundred twenty-four billion, nine hundred ninety-one million, seven hundred thirty-one thousand, five hundred".