7851980583975 has 48 divisors (see below), whose sum is σ = 14162710564224. Its totient is φ = 3806861520000.

The previous prime is 7851980583883. The next prime is 7851980584003. The reversal of 7851980583975 is 5793850891587.

It is not a de Polignac number, because 7851980583975 - 2¹⁹ = 7851980059687 is a prime.

It is a super-2 number, since 2×7851980583975² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (75).

It is a junction number, because it is equal to n+sod(n) for n = 7851980583897 and 7851980583906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20870025 + ... + 21242925.

It is an arithmetic number, because the mean of its divisors is an integer number (295056470088).

Almost surely, 2^{7851980583975} is an apocalyptic number.

7851980583975 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

7851980583975 is a deficient number, since it is larger than the sum of its proper divisors (6310729980249).

7851980583975 is a wasteful number, since it uses less digits than its factorization.

7851980583975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398448 (or 398443 counting only the distinct ones).

The product of its (nonzero) digits is 762048000, while the sum is 75.

The spelling of 7851980583975 in words is "seven trillion, eight hundred fifty-one billion, nine hundred eighty million, five hundred eighty-three thousand, nine hundred seventy-five".