190436729641 has 8 divisors (see below), whose sum is σ = 196639291904. Its totient is φ = 184237882560.

The previous prime is 190436729633. The next prime is 190436729647. The reversal of 190436729641 is 146927634091.

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 190436729641 - 2³ = 190436729633 is a prime.

It is a super-2 number, since 2×190436729641² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190436729647) 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, 824421 + ... + 1029826.

It is an arithmetic number, because the mean of its divisors is an integer number (24579911488).

Almost surely, 2^190436729641 is an apocalyptic number.

It is an amenable number.

190436729641 is a deficient number, since it is larger than the sum of its proper divisors (6202562263).

190436729641 is a wasteful number, since it uses less digits than its factorization.

190436729641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857591.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 190436729641 in words is "one hundred ninety billion, four hundred thirty-six million, seven hundred twenty-nine thousand, six hundred forty-one".