7276561937 has 2 divisors, whose sum is σ = 7276561938. Its totient is φ = 7276561936.

The previous prime is 7276561933. The next prime is 7276561973. The reversal of 7276561937 is 7391656727.

Together with next prime (7276561973) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6321999121 + 954562816 = 79511^2 + 30896^2 .

It is a cyclic number.

It is not a de Polignac number, because 7276561937 - 2² = 7276561933 is a prime.

It is not a weakly prime, because it can be changed into another prime (7276561933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3638280968 + 3638280969.

It is an arithmetic number, because the mean of its divisors is an integer number (3638280969).

Almost surely, 2^7276561937 is an apocalyptic number.

It is an amenable number.

7276561937 is a deficient number, since it is larger than the sum of its proper divisors (1).

7276561937 is an equidigital number, since it uses as much as digits as its factorization.

7276561937 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3333960, while the sum is 53.

The square root of 7276561937 is about 85302.7662916039. The cubic root of 7276561937 is about 1937.7990713746.

The spelling of 7276561937 in words is "seven billion, two hundred seventy-six million, five hundred sixty-one thousand, nine hundred thirty-seven".