377795698561 has 2 divisors, whose sum is σ = 377795698562. Its totient is φ = 377795698560.

The previous prime is 377795698543. The next prime is 377795698627. The reversal of 377795698561 is 165896597773.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 221058888561 + 156736810000 = 470169^2 + 395900^2 .

It is a cyclic number.

It is not a de Polignac number, because 377795698561 - 2¹⁷ = 377795567489 is a prime.

It is not a weakly prime, because it can be changed into another prime (377795668561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188897849280 + 188897849281.

It is an arithmetic number, because the mean of its divisors is an integer number (188897849281).

Almost surely, 2^377795698561 is an apocalyptic number.

It is an amenable number.

377795698561 is a deficient number, since it is larger than the sum of its proper divisors (1).

377795698561 is an equidigital number, since it uses as much as digits as its factorization.

377795698561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 600112800, while the sum is 73.

The spelling of 377795698561 in words is "three hundred seventy-seven billion, seven hundred ninety-five million, six hundred ninety-eight thousand, five hundred sixty-one".