7406597881 has 2 divisors, whose sum is σ = 7406597882. Its totient is φ = 7406597880.

The previous prime is 7406597843. The next prime is 7406597897. The reversal of 7406597881 is 1887956047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7347061225 + 59536656 = 85715^2 + 7716^2 .

It is an emirp because it is prime and its reverse (1887956047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7406597881 - 2²¹ = 7404500729 is a prime.

It is a super-2 number, since 2×7406597881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7406597801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3703298940 + 3703298941.

It is an arithmetic number, because the mean of its divisors is an integer number (3703298941).

Almost surely, 2^7406597881 is an apocalyptic number.

It is an amenable number.

7406597881 is a deficient number, since it is larger than the sum of its proper divisors (1).

7406597881 is an equidigital number, since it uses as much as digits as its factorization.

7406597881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The square root of 7406597881 is about 86061.5935304477. The cubic root of 7406597881 is about 1949.2741441343.

The spelling of 7406597881 in words is "seven billion, four hundred six million, five hundred ninety-seven thousand, eight hundred eighty-one".