1264669893 has 24 divisors (see below), whose sum is σ = 1897309440. Its totient is φ = 810881280.

The previous prime is 1264669871. The next prime is 1264669907. The reversal of 1264669893 is 3989664621.

1264669893 is a `hidden beast` number, since 1 + 2 + 6 + 466 + 98 + 93 = 666.

It is not a de Polignac number, because 1264669893 - 2¹³ = 1264661701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264669853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31573 + ... + 59381.

It is an arithmetic number, because the mean of its divisors is an integer number (79054560).

Almost surely, 2^1264669893 is an apocalyptic number.

It is an amenable number.

1264669893 is a deficient number, since it is larger than the sum of its proper divisors (632639547).

1264669893 is a wasteful number, since it uses less digits than its factorization.

1264669893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28009 (or 28006 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 1264669893 is about 35562.1975277119. The cubic root of 1264669893 is about 1081.4150099641.

The spelling of 1264669893 in words is "one billion, two hundred sixty-four million, six hundred sixty-nine thousand, eight hundred ninety-three".