8821249146774 has 96 divisors (see below), whose sum is σ = 20852772254496. Its totient is φ = 2791166273280.

The previous prime is 8821249146767. The next prime is 8821249146779. The reversal of 8821249146774 is 4776419421288.

8821249146774 is a `hidden beast` number, since 8 + 8 + 2 + 12 + 4 + 91 + 467 + 74 = 666.

It is a super-2 number, since 2×8821249146774² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8821249146779) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5245177 + ... + 6719700.

It is an arithmetic number, because the mean of its divisors is an integer number (217216377651).

Almost surely, 2^{8821249146774} is an apocalyptic number.

8821249146774 is an abundant number, since it is smaller than the sum of its proper divisors (12031523107722).

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

8821249146774 is a wasteful number, since it uses less digits than its factorization.

8821249146774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11964972 (or 11964960 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 63.

The spelling of 8821249146774 in words is "eight trillion, eight hundred twenty-one billion, two hundred forty-nine million, one hundred forty-six thousand, seven hundred seventy-four".