4145379881 has 2 divisors, whose sum is σ = 4145379882. Its totient is φ = 4145379880.

The previous prime is 4145379863. The next prime is 4145379899. The reversal of 4145379881 is 1889735414.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (4145379863) and next prime (4145379899).

It can be written as a sum of positive squares in only one way, i.e., 3891264400 + 254115481 = 62380^2 + 15941^2 .

It is a cyclic number.

It is not a de Polignac number, because 4145379881 - 2⁶ = 4145379817 is a prime.

It is a super-2 number, since 2×4145379881² = 34368348715599148322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4145379281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2072689940 + 2072689941.

It is an arithmetic number, because the mean of its divisors is an integer number (2072689941).

Almost surely, 2^4145379881 is an apocalyptic number.

It is an amenable number.

4145379881 is a deficient number, since it is larger than the sum of its proper divisors (1).

4145379881 is an equidigital number, since it uses as much as digits as its factorization.

4145379881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 50.

The square root of 4145379881 is about 64384.6245698459. The cubic root of 4145379881 is about 1606.4040057517.

The spelling of 4145379881 in words is "four billion, one hundred forty-five million, three hundred seventy-nine thousand, eight hundred eighty-one".