75620445401 has 2 divisors, whose sum is σ = 75620445402. Its totient is φ = 75620445400.

The previous prime is 75620445391. The next prime is 75620445403. The reversal of 75620445401 is 10454402657.

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., 46225000000 + 29395445401 = 215000^2 + 171451^2 .

It is a cyclic number.

It is not a de Polignac number, because 75620445401 - 2⁶ = 75620445337 is a prime.

Together with 75620445403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75620445403) 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 as a sum of consecutive naturals, namely, 37810222700 + 37810222701.

It is an arithmetic number, because the mean of its divisors is an integer number (37810222701).

Almost surely, 2^75620445401 is an apocalyptic number.

It is an amenable number.

75620445401 is a deficient number, since it is larger than the sum of its proper divisors (1).

75620445401 is an equidigital number, since it uses as much as digits as its factorization.

75620445401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 75620445401 in words is "seventy-five billion, six hundred twenty million, four hundred forty-five thousand, four hundred one".