1673436272640 has 384 divisors, whose sum is σ = 5888799221760. Its totient is φ = 405671608320.

The previous prime is 1673436272623. The next prime is 1673436272723. The reversal of 1673436272640 is 462726343761.

It is a tau number, because it is divible by the number of its divisors (384).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40867857 + ... + 40908783.

It is an arithmetic number, because the mean of its divisors is an integer number (15335414640).

Almost surely, 2^{1673436272640} is an apocalyptic number.

1673436272640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1673436272640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2944399610880).

1673436272640 is an abundant number, since it is smaller than the sum of its proper divisors (4215362949120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1673436272640 is an equidigital number, since it uses as much as digits as its factorization.

1673436272640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40990 (or 40948 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 51.

The spelling of 1673436272640 in words is "one trillion, six hundred seventy-three billion, four hundred thirty-six million, two hundred seventy-two thousand, six hundred forty".