1859797160442 has 48 divisors (see below), whose sum is σ = 4339786284288. Its totient is φ = 572211050400.

The previous prime is 1859797160423. The next prime is 1859797160449. The reversal of 1859797160442 is 2440617979581.

1859797160442 is a `hidden beast` number, since 1 + 8 + 5 + 97 + 97 + 16 + 0 + 442 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1859797160442.

It is not an unprimeable number, because it can be changed into a prime (1859797160449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3831103 + ... + 4289165.

It is an arithmetic number, because the mean of its divisors is an integer number (90412214256).

Almost surely, 2^{1859797160442} is an apocalyptic number.

1859797160442 is an abundant number, since it is smaller than the sum of its proper divisors (2479989123846).

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

1859797160442 is a wasteful number, since it uses less digits than its factorization.

1859797160442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475435 (or 475432 counting only the distinct ones).

The product of its (nonzero) digits is 30481920, while the sum is 63.

The spelling of 1859797160442 in words is "one trillion, eight hundred fifty-nine billion, seven hundred ninety-seven million, one hundred sixty thousand, four hundred forty-two".