1152677778 has 16 divisors (see below), whose sum is σ = 2634692160. Its totient is φ = 329336496.

The previous prime is 1152677767. The next prime is 1152677783. The reversal of 1152677778 is 8777762511.

It is a self number, because there is not a number n which added to its sum of digits gives 1152677778.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13722313 + ... + 13722396.

It is an arithmetic number, because the mean of its divisors is an integer number (164668260).

Almost surely, 2^1152677778 is an apocalyptic number.

1152677778 is an abundant number, since it is smaller than the sum of its proper divisors (1482014382).

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

1152677778 is a wasteful number, since it uses less digits than its factorization.

1152677778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27444721.

The product of its digits is 1152480, while the sum is 51.

The square root of 1152677778 is about 33951.1086416924. The cubic root of 1152677778 is about 1048.5021054401.

The spelling of 1152677778 in words is "one billion, one hundred fifty-two million, six hundred seventy-seven thousand, seven hundred seventy-eight".