1672782030431 has 4 divisors (see below), whose sum is σ = 1745511683952. Its totient is φ = 1600052376912.

The previous prime is 1672782030401. The next prime is 1672782030467. The reversal of 1672782030431 is 1340302872761.

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 1672782030431 - 2²² = 1672777836127 is a prime.

It is a super-2 number, since 2×1672782030431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672782030401) 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, 36364826726 + ... + 36364826771.

It is an arithmetic number, because the mean of its divisors is an integer number (436377920988).

Almost surely, 2^{1672782030431} is an apocalyptic number.

1672782030431 is a deficient number, since it is larger than the sum of its proper divisors (72729653521).

1672782030431 is an equidigital number, since it uses as much as digits as its factorization.

1672782030431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72729653520.

The product of its (nonzero) digits is 338688, while the sum is 44.

The spelling of 1672782030431 in words is "one trillion, six hundred seventy-two billion, seven hundred eighty-two million, thirty thousand, four hundred thirty-one".