75540687240 has 32 divisors (see below), whose sum is σ = 226622062080. Its totient is φ = 20144183232.

The previous prime is 75540687139. The next prime is 75540687259. The reversal of 75540687240 is 4278604557.

It is a self number, because there is not a number n which added to its sum of digits gives 75540687240.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314752744 + ... + 314752983.

It is an arithmetic number, because the mean of its divisors is an integer number (7081939440).

Almost surely, 2^75540687240 is an apocalyptic number.

It is an amenable number.

75540687240 is an abundant number, since it is smaller than the sum of its proper divisors (151081374840).

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

75540687240 is a wasteful number, since it uses less digits than its factorization.

75540687240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629505741 (or 629505737 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 48.

The spelling of 75540687240 in words is "seventy-five billion, five hundred forty million, six hundred eighty-seven thousand, two hundred forty".