1626645250473 has 4 divisors (see below), whose sum is σ = 2168860333968. Its totient is φ = 1084430166980.

The previous prime is 1626645250453. The next prime is 1626645250487. The reversal of 1626645250473 is 3740525466261.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1626645250473 - 2⁹ = 1626645249961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1626645250453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271107541743 + ... + 271107541748.

It is an arithmetic number, because the mean of its divisors is an integer number (542215083492).

Almost surely, 2^{1626645250473} is an apocalyptic number.

It is an amenable number.

1626645250473 is a deficient number, since it is larger than the sum of its proper divisors (542215083495).

1626645250473 is an equidigital number, since it uses as much as digits as its factorization.

1626645250473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542215083494.

The product of its (nonzero) digits is 7257600, while the sum is 51.

The spelling of 1626645250473 in words is "one trillion, six hundred twenty-six billion, six hundred forty-five million, two hundred fifty thousand, four hundred seventy-three".