845034381040 has 80 divisors (see below), whose sum is σ = 2016685807776. Its totient is φ = 329180544000.

The previous prime is 845034381031. The next prime is 845034381077. The reversal of 845034381040 is 40183430548.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×845034381040² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 845034380984 and 845034381002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364362 + ... + 1350121.

Almost surely, 2^845034381040 is an apocalyptic number.

845034381040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

845034381040 is an abundant number, since it is smaller than the sum of its proper divisors (1171651426736).

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

845034381040 is a wasteful number, since it uses less digits than its factorization.

845034381040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1714658 (or 1714652 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 845034381040 in words is "eight hundred forty-five billion, thirty-four million, three hundred eighty-one thousand, forty".