1279479850 has 24 divisors (see below), whose sum is σ = 2596182048. Its totient is φ = 465265200.

The previous prime is 1279479763. The next prime is 1279479863. The reversal of 1279479850 is 589749721.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1162614 + ... + 1163713.

It is an arithmetic number, because the mean of its divisors is an integer number (108174252).

Almost surely, 2^1279479850 is an apocalyptic number.

1279479850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1279479850 is an abundant number, since it is smaller than the sum of its proper divisors (1316702198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1279479850 is a wasteful number, since it uses less digits than its factorization.

1279479850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2326350 (or 2326345 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 52.

The square root of 1279479850 is about 35769.8175841029. The cubic root of 1279479850 is about 1085.6199533445.

The spelling of 1279479850 in words is "one billion, two hundred seventy-nine million, four hundred seventy-nine thousand, eight hundred fifty".