7874065756920 has 128 divisors (see below), whose sum is σ = 25773409232640. Its totient is φ = 1908587427840.

The previous prime is 7874065756889. The next prime is 7874065756957. The reversal of 7874065756920 is 296575604787.

It is a Harshad number since it is a multiple of its sum of digits (66).

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, 8740704 + ... + 9599376.

It is an arithmetic number, because the mean of its divisors is an integer number (201354759630).

Almost surely, 2^{7874065756920} is an apocalyptic number.

It is an amenable number.

7874065756920 is an abundant number, since it is smaller than the sum of its proper divisors (17899343475720).

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

7874065756920 is a wasteful number, since it uses less digits than its factorization.

7874065756920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865645 (or 865641 counting only the distinct ones).

The product of its (nonzero) digits is 177811200, while the sum is 66.

The spelling of 7874065756920 in words is "seven trillion, eight hundred seventy-four billion, sixty-five million, seven hundred fifty-six thousand, nine hundred twenty".