891816627468 has 24 divisors (see below), whose sum is σ = 2240975115568. Its totient is φ = 274405116096.

The previous prime is 891816627431. The next prime is 891816627469. The reversal of 891816627468 is 864726618198.

891816627468 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 891816627399 and 891816627408.

It is not an unprimeable number, because it can be changed into a prime (891816627469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2858386471 + ... + 2858386782.

Almost surely, 2^891816627468 is an apocalyptic number.

It is an amenable number.

891816627468 is an abundant number, since it is smaller than the sum of its proper divisors (1349158488100).

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

891816627468 is a wasteful number, since it uses less digits than its factorization.

891816627468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5716773273 (or 5716773271 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 66.

The spelling of 891816627468 in words is "eight hundred ninety-one billion, eight hundred sixteen million, six hundred twenty-seven thousand, four hundred sixty-eight".