1690042237001 has 4 divisors (see below), whose sum is σ = 1701384802500. Its totient is φ = 1678699671504.

The previous prime is 1690042236989. The next prime is 1690042237007. The reversal of 1690042237001 is 1007322400961.

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 192598099600 + 1497444137401 = 438860^2 + 1223701^2 .

It is a cyclic number.

It is not a de Polignac number, because 1690042237001 - 2¹⁰ = 1690042235977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1690042237007) 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, 5671282526 + ... + 5671282823.

It is an arithmetic number, because the mean of its divisors is an integer number (425346200625).

Almost surely, 2^{1690042237001} is an apocalyptic number.

It is an amenable number.

1690042237001 is a deficient number, since it is larger than the sum of its proper divisors (11342565499).

1690042237001 is a wasteful number, since it uses less digits than its factorization.

1690042237001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11342565498.

The product of its (nonzero) digits is 18144, while the sum is 35.

Adding to 1690042237001 its reverse (1007322400961), we get a palindrome (2697364637962).

It can be divided in two parts, 16900 and 42237001, that multiplied together give a square (713805316900 = 844870²).

The spelling of 1690042237001 in words is "one trillion, six hundred ninety billion, forty-two million, two hundred thirty-seven thousand, one".