1077513809 has 2 divisors, whose sum is σ = 1077513810. Its totient is φ = 1077513808.

The previous prime is 1077513781. The next prime is 1077513863. The reversal of 1077513809 is 9083157701.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 746819584 + 330694225 = 27328^2 + 18185^2 .

It is a cyclic number.

It is not a de Polignac number, because 1077513809 - 2²⁸ = 809078353 is a prime.

It is a super-2 number, since 2×1077513809² = 2322072017171376962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1077513109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 538756904 + 538756905.

It is an arithmetic number, because the mean of its divisors is an integer number (538756905).

Almost surely, 2^1077513809 is an apocalyptic number.

It is an amenable number.

1077513809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1077513809 is an equidigital number, since it uses as much as digits as its factorization.

1077513809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52920, while the sum is 41.

The square root of 1077513809 is about 32825.5054645012. The cubic root of 1077513809 is about 1025.1976803740.

The spelling of 1077513809 in words is "one billion, seventy-seven million, five hundred thirteen thousand, eight hundred nine".