7842830638140 has 48 divisors (see below), whose sum is σ = 24399917542560. Its totient is φ = 2091421503360.

The previous prime is 7842830638129. The next prime is 7842830638151. The reversal of 7842830638140 is 418360382487.

7842830638140 is a `hidden beast` number, since 78 + 428 + 3 + 0 + 6 + 3 + 8 + 140 = 666.

It is an interprime number because it is at equal distance from previous prime (7842830638129) and next prime (7842830638151).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 7261879681 + ... + 7261880760.

It is an arithmetic number, because the mean of its divisors is an integer number (508331615470).

Almost surely, 2^{7842830638140} is an apocalyptic number.

It is an amenable number.

7842830638140 is an abundant number, since it is smaller than the sum of its proper divisors (16557086904420).

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

7842830638140 is a wasteful number, since it uses less digits than its factorization.

7842830638140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14523760459 (or 14523760451 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 54.

The spelling of 7842830638140 in words is "seven trillion, eight hundred forty-two billion, eight hundred thirty million, six hundred thirty-eight thousand, one hundred forty".