75686868623 has 2 divisors, whose sum is σ = 75686868624. Its totient is φ = 75686868622.

The previous prime is 75686868599. The next prime is 75686868671. The reversal of 75686868623 is 32686868657.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 75686868623 - 2¹⁴ = 75686852239 is a prime.

It is a super-2 number, since 2×75686868623² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75686868623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75686868823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37843434311 + 37843434312.

It is an arithmetic number, because the mean of its divisors is an integer number (37843434312).

Almost surely, 2^75686868623 is an apocalyptic number.

75686868623 is a deficient number, since it is larger than the sum of its proper divisors (1).

75686868623 is an equidigital number, since it uses as much as digits as its factorization.

75686868623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139345920, while the sum is 65.

The spelling of 75686868623 in words is "seventy-five billion, six hundred eighty-six million, eight hundred sixty-eight thousand, six hundred twenty-three".