1077451649 has 4 divisors (see below), whose sum is σ = 1078068036. Its totient is φ = 1076835264.

The previous prime is 1077451637. The next prime is 1077451667. The reversal of 1077451649 is 9461547701.

1077451649 = T₁₁₀ + T₁₁₁ + ... + T₁₈₆₂.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9461547701 = 1481 ⋅6388621.

It can be written as a sum of positive squares in 2 ways, for example, as 104448400 + 973003249 = 10220^2 + 31193^2 .

It is a cyclic number.

It is not a de Polignac number, because 1077451649 - 2⁴ = 1077451633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1077451699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305564 + ... + 309069.

It is an arithmetic number, because the mean of its divisors is an integer number (269517009).

Almost surely, 2^1077451649 is an apocalyptic number.

It is an amenable number.

1077451649 is a deficient number, since it is larger than the sum of its proper divisors (616387).

1077451649 is an equidigital number, since it uses as much as digits as its factorization.

1077451649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616386.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 1077451649 is about 32824.5586261263. The cubic root of 1077451649 is about 1025.1779660054.

The spelling of 1077451649 in words is "one billion, seventy-seven million, four hundred fifty-one thousand, six hundred forty-nine".