71242534000 has 160 divisors (see below), whose sum is σ = 189059899392. Its totient is φ = 25749920000.

The previous prime is 71242533959. The next prime is 71242534003. The reversal of 71242534000 is 43524217.

It is a self number, because there is not a number n which added to its sum of digits gives 71242534000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71242534003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3664305 + ... + 3683695.

Almost surely, 2^71242534000 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 71242534000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94529949696).

71242534000 is an abundant number, since it is smaller than the sum of its proper divisors (117817365392).

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

71242534000 is a wasteful number, since it uses less digits than its factorization.

71242534000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19592 (or 19576 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The spelling of 71242534000 in words is "seventy-one billion, two hundred forty-two million, five hundred thirty-four thousand".