1690425177671 has 4 divisors (see below), whose sum is σ = 1744955022144. Its totient is φ = 1635895333200.

The previous prime is 1690425177653. The next prime is 1690425177689. The reversal of 1690425177671 is 1767715240961.

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

It is an interprime number because it is at equal distance from previous prime (1690425177653) and next prime (1690425177689).

It is not a de Polignac number, because 1690425177671 - 2³⁴ = 1673245308487 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 (1690425177611) 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, 27264922190 + ... + 27264922251.

It is an arithmetic number, because the mean of its divisors is an integer number (436238755536).

Almost surely, 2^{1690425177671} is an apocalyptic number.

1690425177671 is a deficient number, since it is larger than the sum of its proper divisors (54529844473).

1690425177671 is an equidigital number, since it uses as much as digits as its factorization.

1690425177671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54529844472.

The product of its (nonzero) digits is 4445280, while the sum is 56.

The spelling of 1690425177671 in words is "one trillion, six hundred ninety billion, four hundred twenty-five million, one hundred seventy-seven thousand, six hundred seventy-one".