87603749377 has 2 divisors, whose sum is σ = 87603749378. Its totient is φ = 87603749376.

The previous prime is 87603749357. The next prime is 87603749419. The reversal of 87603749377 is 77394730678.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72180344896 + 15423404481 = 268664^2 + 124191^2 .

It is a cyclic number.

It is not a de Polignac number, because 87603749377 - 2¹⁹ = 87603225089 is a prime.

It is not a weakly prime, because it can be changed into another prime (87603749357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43801874688 + 43801874689.

It is an arithmetic number, because the mean of its divisors is an integer number (43801874689).

Almost surely, 2^87603749377 is an apocalyptic number.

It is an amenable number.

87603749377 is a deficient number, since it is larger than the sum of its proper divisors (1).

87603749377 is an equidigital number, since it uses as much as digits as its factorization.

87603749377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37340352, while the sum is 61.

The spelling of 87603749377 in words is "eighty-seven billion, six hundred three million, seven hundred forty-nine thousand, three hundred seventy-seven".