377220648085 has 4 divisors (see below), whose sum is σ = 452664777708. Its totient is φ = 301776518464.

The previous prime is 377220648083. The next prime is 377220648097. The reversal of 377220648085 is 580846022773.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 263791123236 + 113429524849 = 513606^2 + 336793^2 .

It is a cyclic number.

It is not a de Polignac number, because 377220648085 - 2¹ = 377220648083 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (377220648083) 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 in 3 ways as a sum of consecutive naturals, for example, 37722064804 + ... + 37722064813.

It is an arithmetic number, because the mean of its divisors is an integer number (113166194427).

Almost surely, 2^377220648085 is an apocalyptic number.

It is an amenable number.

377220648085 is a deficient number, since it is larger than the sum of its proper divisors (75444129623).

377220648085 is an equidigital number, since it uses as much as digits as its factorization.

377220648085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75444129622.

The product of its (nonzero) digits is 4515840, while the sum is 52.

The spelling of 377220648085 in words is "three hundred seventy-seven billion, two hundred twenty million, six hundred forty-eight thousand, eighty-five".