1690005858537 has 8 divisors (see below), whose sum is σ = 2254118975136. Its totient is φ = 1126281657152.

The previous prime is 1690005858517. The next prime is 1690005858551. The reversal of 1690005858537 is 7358585000961.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1690005858537 - 2¹¹ = 1690005856489 is a prime.

It is a super-2 number, since 2×1690005858537² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1690005858517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97218663 + ... + 97236044.

It is an arithmetic number, because the mean of its divisors is an integer number (281764871892).

Almost surely, 2^{1690005858537} is an apocalyptic number.

It is an amenable number.

1690005858537 is a deficient number, since it is larger than the sum of its proper divisors (564113116599).

1690005858537 is a wasteful number, since it uses less digits than its factorization.

1690005858537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194457607.

The product of its (nonzero) digits is 9072000, while the sum is 57.

The spelling of 1690005858537 in words is "one trillion, six hundred ninety billion, five million, eight hundred fifty-eight thousand, five hundred thirty-seven".