75446201377 has 2 divisors, whose sum is σ = 75446201378. Its totient is φ = 75446201376.

The previous prime is 75446201359. The next prime is 75446201419. The reversal of 75446201377 is 77310264457.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59592621456 + 15853579921 = 244116^2 + 125911^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75446201377 is a prime.

It is a super-2 number, since 2×75446201377² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (75446201177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37723100688 + 37723100689.

It is an arithmetic number, because the mean of its divisors is an integer number (37723100689).

Almost surely, 2^75446201377 is an apocalyptic number.

It is an amenable number.

75446201377 is a deficient number, since it is larger than the sum of its proper divisors (1).

75446201377 is an equidigital number, since it uses as much as digits as its factorization.

75446201377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 987840, while the sum is 46.

The spelling of 75446201377 in words is "seventy-five billion, four hundred forty-six million, two hundred one thousand, three hundred seventy-seven".