690380076577 has 2 divisors, whose sum is σ = 690380076578. Its totient is φ = 690380076576.

The previous prime is 690380076539. The next prime is 690380076637. The reversal of 690380076577 is 775670083096.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 684857208721 + 5522867856 = 827561^2 + 74316^2 .

It is a cyclic number.

It is not a de Polignac number, because 690380076577 - 2²³ = 690371687969 is a prime.

It is not a weakly prime, because it can be changed into another prime (690380076277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345190038288 + 345190038289.

It is an arithmetic number, because the mean of its divisors is an integer number (345190038289).

Almost surely, 2^690380076577 is an apocalyptic number.

It is an amenable number.

690380076577 is a deficient number, since it is larger than the sum of its proper divisors (1).

690380076577 is an equidigital number, since it uses as much as digits as its factorization.

690380076577 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13335840, while the sum is 58.

The spelling of 690380076577 in words is "six hundred ninety billion, three hundred eighty million, seventy-six thousand, five hundred seventy-seven".