376918612381 has 2 divisors, whose sum is σ = 376918612382. Its totient is φ = 376918612380.

The previous prime is 376918612267. The next prime is 376918612387. The reversal of 376918612381 is 183216819673.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 376345440900 + 573171481 = 613470^2 + 23941^2 .

It is an emirp because it is prime and its reverse (183216819673) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 376918612381 - 2¹³ = 376918604189 is a prime.

It is a super-2 number, since 2×376918612381² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (376918612387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 188459306190 + 188459306191.

It is an arithmetic number, because the mean of its divisors is an integer number (188459306191).

Almost surely, 2^376918612381 is an apocalyptic number.

It is an amenable number.

376918612381 is a deficient number, since it is larger than the sum of its proper divisors (1).

376918612381 is an equidigital number, since it uses as much as digits as its factorization.

376918612381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 55.

The spelling of 376918612381 in words is "three hundred seventy-six billion, nine hundred eighteen million, six hundred twelve thousand, three hundred eighty-one".