7249692956881 has 2 divisors, whose sum is σ = 7249692956882. Its totient is φ = 7249692956880.

The previous prime is 7249692956873. The next prime is 7249692956929. The reversal of 7249692956881 is 1886592969427.

7249692956881 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4563175273281 + 2686517683600 = 2136159^2 + 1639060^2 .

It is an emirp because it is prime and its reverse (1886592969427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7249692956881 - 2³ = 7249692956873 is a prime.

It is a super-2 number, since 2×7249692956881² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7249692956798 and 7249692956807.

It is not a weakly prime, because it can be changed into another prime (7249692956861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3624846478440 + 3624846478441.

It is an arithmetic number, because the mean of its divisors is an integer number (3624846478441).

Almost surely, 2^{7249692956881} is an apocalyptic number.

It is an amenable number.

7249692956881 is a deficient number, since it is larger than the sum of its proper divisors (1).

7249692956881 is an equidigital number, since it uses as much as digits as its factorization.

7249692956881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 940584960, while the sum is 76.

The spelling of 7249692956881 in words is "seven trillion, two hundred forty-nine billion, six hundred ninety-two million, nine hundred fifty-six thousand, eight hundred eighty-one".