7804378140 has 96 divisors (see below), whose sum is σ = 23627552256. Its totient is φ = 1913376000.

The previous prime is 7804378129. The next prime is 7804378151. The reversal of 7804378140 is 418734087.

It is an interprime number because it is at equal distance from previous prime (7804378129) and next prime (7804378151).

It is a junction number, because it is equal to n+sod(n) for n = 7804378092 and 7804378101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175849 + ... + 215711.

It is an arithmetic number, because the mean of its divisors is an integer number (246120336).

Almost surely, 2^7804378140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7804378140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11813776128).

7804378140 is an abundant number, since it is smaller than the sum of its proper divisors (15823174116).

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

7804378140 is a wasteful number, since it uses less digits than its factorization.

7804378140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40139 (or 40137 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 7804378140 is about 88342.3915229829. The cubic root of 7804378140 is about 1983.5634685915.

The spelling of 7804378140 in words is "seven billion, eight hundred four million, three hundred seventy-eight thousand, one hundred forty".