1264669894 has 8 divisors (see below), whose sum is σ = 1899713088. Its totient is φ = 631432200.

The previous prime is 1264669871. The next prime is 1264669907. The reversal of 1264669894 is 4989664621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449622 + ... + 452425.

It is an arithmetic number, because the mean of its divisors is an integer number (237464136).

Almost surely, 2^1264669894 is an apocalyptic number.

1264669894 is a deficient number, since it is larger than the sum of its proper divisors (635043194).

1264669894 is an equidigital number, since it uses as much as digits as its factorization.

1264669894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902750.

The product of its digits is 4478976, while the sum is 55.

The square root of 1264669894 is about 35562.1975417718. The cubic root of 1264669894 is about 1081.4150102491.

The spelling of 1264669894 in words is "one billion, two hundred sixty-four million, six hundred sixty-nine thousand, eight hundred ninety-four".