1675421637061 has 4 divisors (see below), whose sum is σ = 1679401261324. Its totient is φ = 1671442012800.

The previous prime is 1675421637049. The next prime is 1675421637083. The reversal of 1675421637061 is 1607361245761.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3495056161 + 1671926580900 = 59119^2 + 1293030^2 .

It is a cyclic number.

It is not a de Polignac number, because 1675421637061 - 2¹³ = 1675421628869 is a prime.

It is a super-2 number, since 2×1675421637061² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1675421636996 and 1675421637014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1675421637761) 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, 1989811500 + ... + 1989812341.

It is an arithmetic number, because the mean of its divisors is an integer number (419850315331).

Almost surely, 2^{1675421637061} is an apocalyptic number.

It is an amenable number.

1675421637061 is a deficient number, since it is larger than the sum of its proper divisors (3979624263).

1675421637061 is an equidigital number, since it uses as much as digits as its factorization.

1675421637061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979624262.

The product of its (nonzero) digits is 1270080, while the sum is 49.

The spelling of 1675421637061 in words is "one trillion, six hundred seventy-five billion, four hundred twenty-one million, six hundred thirty-seven thousand, sixty-one".