891514377492 has 24 divisors (see below), whose sum is σ = 2080217462400. Its totient is φ = 297168995136.

The previous prime is 891514377473. The next prime is 891514377497. The reversal of 891514377492 is 294773415198.

891514377492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891514377497) 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, 1749109 + ... + 2200547.

It is an arithmetic number, because the mean of its divisors is an integer number (86675727600).

Almost surely, 2^891514377492 is an apocalyptic number.

It is an amenable number.

891514377492 is an abundant number, since it is smaller than the sum of its proper divisors (1188703084908).

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

891514377492 is a wasteful number, since it uses less digits than its factorization.

891514377492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616015 (or 616013 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 60.

The spelling of 891514377492 in words is "eight hundred ninety-one billion, five hundred fourteen million, three hundred seventy-seven thousand, four hundred ninety-two".