1026745816 has 8 divisors (see below), whose sum is σ = 1925148420. Its totient is φ = 513372904.

The previous prime is 1026745813. The next prime is 1026745817. The reversal of 1026745816 is 6185476201.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026745813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64171606 + ... + 64171621.

Almost surely, 2^1026745816 is an apocalyptic number.

It is an amenable number.

1026745816 is a deficient number, since it is larger than the sum of its proper divisors (898402604).

1026745816 is a wasteful number, since it uses less digits than its factorization.

1026745816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128343233 (or 128343229 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 1026745816 is about 32042.8746525651. The cubic root of 1026745816 is about 1008.8369502790.

The spelling of 1026745816 in words is "one billion, twenty-six million, seven hundred forty-five thousand, eight hundred sixteen".