190013649251 has 8 divisors (see below), whose sum is σ = 192697540704. Its totient is φ = 187329970240.

The previous prime is 190013649193. The next prime is 190013649257. The reversal of 190013649251 is 152946310091.

190013649251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190013649251 is a prime.

It is a super-2 number, since 2×190013649251² (a number of 23 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 = 190013649199 and 190013649208.

It is not an unprimeable number, because it can be changed into a prime (190013649257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2893655 + ... + 2958591.

It is an arithmetic number, because the mean of its divisors is an integer number (24087192588).

Almost surely, 2^190013649251 is an apocalyptic number.

190013649251 is a deficient number, since it is larger than the sum of its proper divisors (2683891453).

190013649251 is an equidigital number, since it uses as much as digits as its factorization.

190013649251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106221.

The product of its (nonzero) digits is 58320, while the sum is 41.

The spelling of 190013649251 in words is "one hundred ninety billion, thirteen million, six hundred forty-nine thousand, two hundred fifty-one".