7564191049 has 2 divisors, whose sum is σ = 7564191050. Its totient is φ = 7564191048.

The previous prime is 7564191031. The next prime is 7564191059. The reversal of 7564191049 is 9401914657.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4766521600 + 2797669449 = 69040^2 + 52893^2 .

It is a cyclic number.

It is not a de Polignac number, because 7564191049 - 2⁹ = 7564190537 is a prime.

It is not a weakly prime, because it can be changed into another prime (7564191029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3782095524 + 3782095525.

It is an arithmetic number, because the mean of its divisors is an integer number (3782095525).

Almost surely, 2^7564191049 is an apocalyptic number.

It is an amenable number.

7564191049 is a deficient number, since it is larger than the sum of its proper divisors (1).

7564191049 is an equidigital number, since it uses as much as digits as its factorization.

7564191049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 7564191049 is about 86972.3579592965. The cubic root of 7564191049 is about 1963.0023963417.

The spelling of 7564191049 in words is "seven billion, five hundred sixty-four million, one hundred ninety-one thousand, forty-nine".