85388465753 has 2 divisors, whose sum is σ = 85388465754. Its totient is φ = 85388465752.

The previous prime is 85388465677. The next prime is 85388465797. The reversal of 85388465753 is 35756488358.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83202248704 + 2186217049 = 288448^2 + 46757^2 .

It is a cyclic number.

It is not a de Polignac number, because 85388465753 - 2²⁸ = 85120030297 is a prime.

It is not a weakly prime, because it can be changed into another prime (85388465153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42694232876 + 42694232877.

It is an arithmetic number, because the mean of its divisors is an integer number (42694232877).

Almost surely, 2^85388465753 is an apocalyptic number.

It is an amenable number.

85388465753 is a deficient number, since it is larger than the sum of its proper divisors (1).

85388465753 is an equidigital number, since it uses as much as digits as its factorization.

85388465753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768000, while the sum is 62.

The spelling of 85388465753 in words is "eighty-five billion, three hundred eighty-eight million, four hundred sixty-five thousand, seven hundred fifty-three".