1278953064 has 80 divisors (see below), whose sum is σ = 3595965120. Its totient is φ = 424686240.

The previous prime is 1278953029. The next prime is 1278953083. The reversal of 1278953064 is 4603598721.

1278953064 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.

1278953064 is strictly pandigital in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 171967 + ... + 179249.

It is an arithmetic number, because the mean of its divisors is an integer number (44949564).

It is a 1-persistent number, because it is pandigital, but 2⋅1278953064 = 2557906128 is not.

Almost surely, 2^1278953064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1278953064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1797982560).

1278953064 is an abundant number, since it is smaller than the sum of its proper divisors (2317012056).

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

1278953064 is a wasteful number, since it uses less digits than its factorization.

1278953064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7572 (or 7559 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 1278953064 is about 35762.4532715528. The cubic root of 1278953064 is about 1085.4709428185.

The spelling of 1278953064 in words is "one billion, two hundred seventy-eight million, nine hundred fifty-three thousand, sixty-four".