1673436272551 has 4 divisors (see below), whose sum is σ = 1673452345104. Its totient is φ = 1673420200000.

The previous prime is 1673436272539. The next prime is 1673436272597. The reversal of 1673436272551 is 1552726343761.

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

It is a cyclic number.

It is not a de Polignac number, because 1673436272551 - 2¹¹ = 1673436270503 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 (1673436272251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7879075 + ... + 8088676.

It is an arithmetic number, because the mean of its divisors is an integer number (418363086276).

Almost surely, 2^{1673436272551} is an apocalyptic number.

1673436272551 is a deficient number, since it is larger than the sum of its proper divisors (16072553).

1673436272551 is a wasteful number, since it uses less digits than its factorization.

1673436272551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16072552.

The product of its digits is 6350400, while the sum is 52.

The spelling of 1673436272551 in words is "one trillion, six hundred seventy-three billion, four hundred thirty-six million, two hundred seventy-two thousand, five hundred fifty-one".