190687468969 has 8 divisors (see below), whose sum is σ = 194898250440. Its totient is φ = 186499387776.

The previous prime is 190687468931. The next prime is 190687468973. The reversal of 190687468969 is 969864786091.

It can be written as a sum of positive squares in 4 ways, for example, as 55031529744 + 135655939225 = 234588^2 + 368315^2 .

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 190687468969 - 2²¹ = 190685371817 is a prime.

It is a super-2 number, since 2×190687468969² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190687468919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5658084 + ... + 5691685.

It is an arithmetic number, because the mean of its divisors is an integer number (24362281305).

Almost surely, 2^190687468969 is an apocalyptic number.

It is an amenable number.

190687468969 is a deficient number, since it is larger than the sum of its proper divisors (4210781471).

190687468969 is a wasteful number, since it uses less digits than its factorization.

190687468969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11350139.

The product of its (nonzero) digits is 282175488, while the sum is 73.

The spelling of 190687468969 in words is "one hundred ninety billion, six hundred eighty-seven million, four hundred sixty-eight thousand, nine hundred sixty-nine".