1140891228978 has 8 divisors (see below), whose sum is σ = 2281782457968. Its totient is φ = 380297076324.

The previous prime is 1140891228977. The next prime is 1140891228989. The reversal of 1140891228978 is 8798221980411.

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

1140891228978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1140891228977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95074269076 + ... + 95074269087.

It is an arithmetic number, because the mean of its divisors is an integer number (285222807246).

Almost surely, 2^{1140891228978} is an apocalyptic number.

1140891228978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1140891228978 is a wasteful number, since it uses less digits than its factorization.

1140891228978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190148538168.

The product of its (nonzero) digits is 4644864, while the sum is 60.

The spelling of 1140891228978 in words is "one trillion, one hundred forty billion, eight hundred ninety-one million, two hundred twenty-eight thousand, nine hundred seventy-eight".