1858472971042 has 8 divisors (see below), whose sum is σ = 2908914215616. Its totient is φ = 888834899172.

The previous prime is 1858472971039. The next prime is 1858472971049. The reversal of 1858472971042 is 2401792748581.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1858472971049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20200793118 + ... + 20200793209.

It is an arithmetic number, because the mean of its divisors is an integer number (363614276952).

Almost surely, 2^{1858472971042} is an apocalyptic number.

1858472971042 is a deficient number, since it is larger than the sum of its proper divisors (1050441244574).

1858472971042 is a wasteful number, since it uses less digits than its factorization.

1858472971042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40401586352.

The product of its (nonzero) digits is 9031680, while the sum is 58.

The spelling of 1858472971042 in words is "one trillion, eight hundred fifty-eight billion, four hundred seventy-two million, nine hundred seventy-one thousand, forty-two".