7605812381 has 2 divisors, whose sum is σ = 7605812382. Its totient is φ = 7605812380.

The previous prime is 7605812377. The next prime is 7605812399. The reversal of 7605812381 is 1832185067.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7454768281 + 151044100 = 86341^2 + 12290^2 .

It is a cyclic number.

It is not a de Polignac number, because 7605812381 - 2² = 7605812377 is a prime.

It is a super-2 number, since 2×7605812381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7605812311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3802906190 + 3802906191.

It is an arithmetic number, because the mean of its divisors is an integer number (3802906191).

Almost surely, 2^7605812381 is an apocalyptic number.

It is an amenable number.

7605812381 is a deficient number, since it is larger than the sum of its proper divisors (1).

7605812381 is an equidigital number, since it uses as much as digits as its factorization.

7605812381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 7605812381 is about 87211.3087907755. The cubic root of 7605812381 is about 1966.5962319152.

The spelling of 7605812381 in words is "seven billion, six hundred five million, eight hundred twelve thousand, three hundred eighty-one".