7851898911376 has 45 divisors (see below), whose sum is σ = 16473612853161. Its totient is φ = 3623886092736.

The previous prime is 7851898911371. The next prime is 7851898911377. The reversal of 7851898911376 is 6731198981587.

The square root of 7851898911376 is 2802124.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1161523507600 + 6690375403776 = 1077740^2 + 2586576^2 .

It is a super-2 number, since 2×7851898911376² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7851898911299 and 7851898911308.

It is not an unprimeable number, because it can be changed into a prime (7851898911371) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 145683505 + ... + 145737391.

Almost surely, 2^{7851898911376} is an apocalyptic number.

7851898911376 is the 2802124-th square number.

It is an amenable number.

7851898911376 is an abundant number, since it is smaller than the sum of its proper divisors (8621713941785).

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

7851898911376 is an frugal number, since it uses more digits than its factorization.

7851898911376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107808 (or 53902 counting only the distinct ones).

The product of its digits is 182891520, while the sum is 73.

The spelling of 7851898911376 in words is "seven trillion, eight hundred fifty-one billion, eight hundred ninety-eight million, nine hundred eleven thousand, three hundred seventy-six".