1826780075445 has 32 divisors (see below), whose sum is σ = 3150256741632. Its totient is φ = 898602412032.

The previous prime is 1826780075437. The next prime is 1826780075447. The reversal of 1826780075445 is 5445700876281.

It is not a de Polignac number, because 1826780075445 - 2³ = 1826780075437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1826780075447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3591484 + ... + 4068453.

It is an arithmetic number, because the mean of its divisors is an integer number (98445523176).

Almost surely, 2^{1826780075445} is an apocalyptic number.

1826780075445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1826780075445 is a deficient number, since it is larger than the sum of its proper divisors (1323476666187).

1826780075445 is a wasteful number, since it uses less digits than its factorization.

1826780075445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7661181.

The product of its (nonzero) digits is 15052800, while the sum is 57.

The spelling of 1826780075445 in words is "one trillion, eight hundred twenty-six billion, seven hundred eighty million, seventy-five thousand, four hundred forty-five".