75640838363 has 4 divisors (see below), whose sum is σ = 75831369840. Its totient is φ = 75450306888.

The previous prime is 75640838321. The next prime is 75640838401. The reversal of 75640838363 is 36383804657.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75640838363 - 2¹⁰ = 75640837339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75640838563) 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 3 ways as a sum of consecutive naturals, for example, 95265143 + ... + 95265936.

It is an arithmetic number, because the mean of its divisors is an integer number (18957842460).

Almost surely, 2^75640838363 is an apocalyptic number.

75640838363 is a deficient number, since it is larger than the sum of its proper divisors (190531477).

75640838363 is a wasteful number, since it uses less digits than its factorization.

75640838363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190531476.

The product of its (nonzero) digits is 8709120, while the sum is 53.

The spelling of 75640838363 in words is "seventy-five billion, six hundred forty million, eight hundred thirty-eight thousand, three hundred sixty-three".