1873455532153 has 4 divisors (see below), whose sum is σ = 1904167917988. Its totient is φ = 1842743146320.

The previous prime is 1873455532127. The next prime is 1873455532159. The reversal of 1873455532153 is 3512355543781.

It is a happy number.

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 336061365264 + 1537394166889 = 579708^2 + 1239917^2 .

It is a cyclic number.

It is not a de Polignac number, because 1873455532153 - 2⁵ = 1873455532121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1873455532153.

It is not an unprimeable number, because it can be changed into a prime (1873455532159) 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, 15356192826 + ... + 15356192947.

It is an arithmetic number, because the mean of its divisors is an integer number (476041979497).

Almost surely, 2^{1873455532153} is an apocalyptic number.

It is an amenable number.

1873455532153 is a deficient number, since it is larger than the sum of its proper divisors (30712385835).

1873455532153 is an equidigital number, since it uses as much as digits as its factorization.

1873455532153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30712385834.

The product of its digits is 7560000, while the sum is 52.

The spelling of 1873455532153 in words is "one trillion, eight hundred seventy-three billion, four hundred fifty-five million, five hundred thirty-two thousand, one hundred fifty-three".