7455742375261 has 2 divisors, whose sum is σ = 7455742375262. Its totient is φ = 7455742375260.

The previous prime is 7455742375177. The next prime is 7455742375273. The reversal of 7455742375261 is 1625732475547.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6489195812100 + 966546563161 = 2547390^2 + 983131^2 .

It is a cyclic number.

It is not a de Polignac number, because 7455742375261 - 2⁹ = 7455742374749 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7455742375196 and 7455742375205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7455742370261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3727871187630 + 3727871187631.

It is an arithmetic number, because the mean of its divisors is an integer number (3727871187631).

Almost surely, 2^{7455742375261} is an apocalyptic number.

It is an amenable number.

7455742375261 is a deficient number, since it is larger than the sum of its proper divisors (1).

7455742375261 is an equidigital number, since it uses as much as digits as its factorization.

7455742375261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 49392000, while the sum is 58.

The spelling of 7455742375261 in words is "seven trillion, four hundred fifty-five billion, seven hundred forty-two million, three hundred seventy-five thousand, two hundred sixty-one".