377681610749 has 2 divisors, whose sum is σ = 377681610750. Its totient is φ = 377681610748.

The previous prime is 377681610643. The next prime is 377681610781. The reversal of 377681610749 is 947016186773.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269231265625 + 108450345124 = 518875^2 + 329318^2 .

It is a cyclic number.

It is not a de Polignac number, because 377681610749 - 2²⁰ = 377680562173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (377681630749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188840805374 + 188840805375.

It is an arithmetic number, because the mean of its divisors is an integer number (188840805375).

Almost surely, 2^377681610749 is an apocalyptic number.

It is an amenable number.

377681610749 is a deficient number, since it is larger than the sum of its proper divisors (1).

377681610749 is an equidigital number, since it uses as much as digits as its factorization.

377681610749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10668672, while the sum is 59.

The spelling of 377681610749 in words is "three hundred seventy-seven billion, six hundred eighty-one million, six hundred ten thousand, seven hundred forty-nine".