1152178273387 has 32 divisors (see below), whose sum is σ = 1247044571136. Its totient is φ = 1062488793600.

The previous prime is 1152178273361. The next prime is 1152178273409. The reversal of 1152178273387 is 7833728712511.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1152178273387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1152178273357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9496368 + ... + 9616930.

It is an arithmetic number, because the mean of its divisors is an integer number (38970142848).

Almost surely, 2^{1152178273387} is an apocalyptic number.

1152178273387 is a deficient number, since it is larger than the sum of its proper divisors (94866297749).

1152178273387 is a wasteful number, since it uses less digits than its factorization.

1152178273387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120811.

The product of its digits is 3951360, while the sum is 55.

The spelling of 1152178273387 in words is "one trillion, one hundred fifty-two billion, one hundred seventy-eight million, two hundred seventy-three thousand, three hundred eighty-seven".