1797378503813 has 16 divisors (see below), whose sum is σ = 1911736028160. Its totient is φ = 1686825302400.

The previous prime is 1797378503803. The next prime is 1797378503831. The reversal of 1797378503813 is 3183058737971.

It is a cyclic number.

It is not a de Polignac number, because 1797378503813 - 2²⁴ = 1797361726597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1797378503803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2466845 + ... + 3111282.

It is an arithmetic number, because the mean of its divisors is an integer number (119483501760).

Almost surely, 2^{1797378503813} is an apocalyptic number.

It is an amenable number.

1797378503813 is a deficient number, since it is larger than the sum of its proper divisors (114357524347).

1797378503813 is a wasteful number, since it uses less digits than its factorization.

1797378503813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5578468.

The product of its (nonzero) digits is 26671680, while the sum is 62.

The spelling of 1797378503813 in words is "one trillion, seven hundred ninety-seven billion, three hundred seventy-eight million, five hundred three thousand, eight hundred thirteen".