1151644828878 has 12 divisors (see below), whose sum is σ = 2495230462608. Its totient is φ = 383881609620.

The previous prime is 1151644828849. The next prime is 1151644828897. The reversal of 1151644828878 is 8788284461511.

1151644828878 is a `hidden beast` number, since 1 + 1 + 5 + 1 + 6 + 4 + 482 + 88 + 78 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31990134118 + ... + 31990134153.

It is an arithmetic number, because the mean of its divisors is an integer number (207935871884).

Almost surely, 2^{1151644828878} is an apocalyptic number.

1151644828878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1151644828878 is an abundant number, since it is smaller than the sum of its proper divisors (1343585633730).

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

1151644828878 is a wasteful number, since it uses less digits than its factorization.

1151644828878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63980268279 (or 63980268276 counting only the distinct ones).

The product of its digits is 27525120, while the sum is 63.

The spelling of 1151644828878 in words is "one trillion, one hundred fifty-one billion, six hundred forty-four million, eight hundred twenty-eight thousand, eight hundred seventy-eight".