1872774183901 has 2 divisors, whose sum is σ = 1872774183902. Its totient is φ = 1872774183900.

The previous prime is 1872774183883. The next prime is 1872774183911. The reversal of 1872774183901 is 1093814772781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1104958368900 + 767815815001 = 1051170^2 + 876251^2 .

It is an emirp because it is prime and its reverse (1093814772781) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1872774183901 - 2²¹ = 1872772086749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1872774183911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 936387091950 + 936387091951.

It is an arithmetic number, because the mean of its divisors is an integer number (936387091951).

Almost surely, 2^{1872774183901} is an apocalyptic number.

It is an amenable number.

1872774183901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1872774183901 is an equidigital number, since it uses as much as digits as its factorization.

1872774183901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4741632, while the sum is 58.

The spelling of 1872774183901 in words is "one trillion, eight hundred seventy-two billion, seven hundred seventy-four million, one hundred eighty-three thousand, nine hundred one".