845480277640 has 32 divisors (see below), whose sum is σ = 1903347538560. Its totient is φ = 338011326400.

The previous prime is 845480277583. The next prime is 845480277659. The reversal of 845480277640 is 46772084548.

It is a super-2 number, since 2×845480277640² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5573746 + ... + 5723425.

It is an arithmetic number, because the mean of its divisors is an integer number (59479610580).

Almost surely, 2^845480277640 is an apocalyptic number.

It is an amenable number.

845480277640 is an abundant number, since it is smaller than the sum of its proper divisors (1057867260920).

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

845480277640 is a wasteful number, since it uses less digits than its factorization.

845480277640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11299053 (or 11299049 counting only the distinct ones).

The product of its (nonzero) digits is 12042240, while the sum is 55.

The spelling of 845480277640 in words is "eight hundred forty-five billion, four hundred eighty million, two hundred seventy-seven thousand, six hundred forty".