1669850909938 has 32 divisors (see below), whose sum is σ = 2724027176448. Its totient is φ = 764508844800.

The previous prime is 1669850909917. The next prime is 1669850909939. The reversal of 1669850909938 is 8399090589661.

It is a super-2 number, since 2×1669850909938² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1669850909939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16670143 + ... + 16770013.

It is an arithmetic number, because the mean of its divisors is an integer number (85125849264).

Almost surely, 2^{1669850909938} is an apocalyptic number.

1669850909938 is a deficient number, since it is larger than the sum of its proper divisors (1054176266510).

1669850909938 is a wasteful number, since it uses less digits than its factorization.

1669850909938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113218.

The product of its (nonzero) digits is 226748160, while the sum is 73.

The spelling of 1669850909938 in words is "one trillion, six hundred sixty-nine billion, eight hundred fifty million, nine hundred nine thousand, nine hundred thirty-eight".