1821071854074 has 16 divisors (see below), whose sum is σ = 3973247681760. Its totient is φ = 551839955760.

The previous prime is 1821071854051. The next prime is 1821071854081. The reversal of 1821071854074 is 4704581701281.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13795998829 + ... + 13795998960.

It is an arithmetic number, because the mean of its divisors is an integer number (248327980110).

Almost surely, 2^{1821071854074} is an apocalyptic number.

1821071854074 is an abundant number, since it is smaller than the sum of its proper divisors (2152175827686).

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

1821071854074 is a wasteful number, since it uses less digits than its factorization.

1821071854074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27591997805.

The product of its (nonzero) digits is 501760, while the sum is 48.

The spelling of 1821071854074 in words is "one trillion, eight hundred twenty-one billion, seventy-one million, eight hundred fifty-four thousand, seventy-four".