1872488935397 has 4 divisors (see below), whose sum is σ = 1882834178316. Its totient is φ = 1862143692480.

The previous prime is 1872488935379. The next prime is 1872488935463. The reversal of 1872488935397 is 7935398842781.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 398229150916 + 1474259784481 = 631054^2 + 1214191^2 .

It is a cyclic number.

It is not a de Polignac number, because 1872488935397 - 2¹² = 1872488931301 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 (1872488935307) 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, 5172621188 + ... + 5172621549.

It is an arithmetic number, because the mean of its divisors is an integer number (470708544579).

Almost surely, 2^{1872488935397} is an apocalyptic number.

It is an amenable number.

1872488935397 is a deficient number, since it is larger than the sum of its proper divisors (10345242919).

1872488935397 is a wasteful number, since it uses less digits than its factorization.

1872488935397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10345242918.

The product of its digits is 731566080, while the sum is 74.

The spelling of 1872488935397 in words is "one trillion, eight hundred seventy-two billion, four hundred eighty-eight million, nine hundred thirty-five thousand, three hundred ninety-seven".