7845093399640 has 32 divisors (see below), whose sum is σ = 20173097314080. Its totient is φ = 2689746308352.

The previous prime is 7845093399587. The next prime is 7845093399641. The reversal of 7845093399640 is 469933905487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7845093399641) 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, 14009095077 + ... + 14009095636.

It is an arithmetic number, because the mean of its divisors is an integer number (630409291065).

Almost surely, 2^{7845093399640} is an apocalyptic number.

7845093399640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7845093399640 is an abundant number, since it is smaller than the sum of its proper divisors (12328003914440).

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

7845093399640 is a wasteful number, since it uses less digits than its factorization.

7845093399640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28018190731 (or 28018190727 counting only the distinct ones).

The product of its (nonzero) digits is 176359680, while the sum is 67.

The spelling of 7845093399640 in words is "seven trillion, eight hundred forty-five billion, ninety-three million, three hundred ninety-nine thousand, six hundred forty".