75638384712 has 64 divisors (see below), whose sum is σ = 229207233600. Its totient is φ = 22920721920.

The previous prime is 75638384711. The next prime is 75638384713. The reversal of 75638384712 is 21748383657.

It is a happy number.

75638384712 is a `hidden beast` number, since 7 + 563 + 8 + 3 + 8 + 4 + 71 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (75638384711) and next prime (75638384713).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (75638384711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15914793 + ... + 15919544.

It is an arithmetic number, because the mean of its divisors is an integer number (3581363025).

Almost surely, 2^75638384712 is an apocalyptic number.

75638384712 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

75638384712 is an abundant number, since it is smaller than the sum of its proper divisors (153568848888).

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

75638384712 is a wasteful number, since it uses less digits than its factorization.

75638384712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31834363 (or 31834353 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The spelling of 75638384712 in words is "seventy-five billion, six hundred thirty-eight million, three hundred eighty-four thousand, seven hundred twelve".