71430240750 has 128 divisors (see below), whose sum is σ = 201205555200. Its totient is φ = 16719248000.

The previous prime is 71430240731. The next prime is 71430240757. The reversal of 71430240750 is 5704203417.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71430240757) by changing a digit.

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, 89971 + ... + 388529.

It is an arithmetic number, because the mean of its divisors is an integer number (1571918400).

Almost surely, 2^71430240750 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71430240750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100602777600).

71430240750 is an abundant number, since it is smaller than the sum of its proper divisors (129775314450).

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

71430240750 is a wasteful number, since it uses less digits than its factorization.

71430240750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298619 (or 298609 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The spelling of 71430240750 in words is "seventy-one billion, four hundred thirty million, two hundred forty thousand, seven hundred fifty".