775450952649 has 12 divisors (see below), whose sum is σ = 1120107336816. Its totient is φ = 516961986552.

The previous prime is 775450952587. The next prime is 775450952663. The reversal of 775450952649 is 946259054577.

775450952649 is a `hidden beast` number, since 7 + 7 + 54 + 50 + 9 + 526 + 4 + 9 = 666.

It is not a de Polignac number, because 775450952649 - 2²⁴ = 775434175433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (775450952669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 613722 + ... + 1388364.

It is an arithmetic number, because the mean of its divisors is an integer number (93342278068).

Almost surely, 2^775450952649 is an apocalyptic number.

It is an amenable number.

775450952649 is a deficient number, since it is larger than the sum of its proper divisors (344656384167).

775450952649 is a wasteful number, since it uses less digits than its factorization.

775450952649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885876 (or 885873 counting only the distinct ones).

The product of its (nonzero) digits is 95256000, while the sum is 63.

The spelling of 775450952649 in words is "seven hundred seventy-five billion, four hundred fifty million, nine hundred fifty-two thousand, six hundred forty-nine".