7651025381 has 2 divisors, whose sum is σ = 7651025382. Its totient is φ = 7651025380.

The previous prime is 7651025377. The next prime is 7651025419. The reversal of 7651025381 is 1835201567.

It is an a-pointer prime, because the next prime (7651025419) can be obtained adding 7651025381 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4600230625 + 3050794756 = 67825^2 + 55234^2 .

It is a cyclic number.

It is not a de Polignac number, because 7651025381 - 2² = 7651025377 is a prime.

It is a super-2 number, since 2×7651025381² (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 (7651025351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3825512690 + 3825512691.

It is an arithmetic number, because the mean of its divisors is an integer number (3825512691).

Almost surely, 2^7651025381 is an apocalyptic number.

It is an amenable number.

7651025381 is a deficient number, since it is larger than the sum of its proper divisors (1).

7651025381 is an equidigital number, since it uses as much as digits as its factorization.

7651025381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 7651025381 is about 87470.1399392959. The cubic root of 7651025381 is about 1970.4853675349.

The spelling of 7651025381 in words is "seven billion, six hundred fifty-one million, twenty-five thousand, three hundred eighty-one".