1649729490190 has 8 divisors (see below), whose sum is σ = 2969513082360. Its totient is φ = 659891796072.

The previous prime is 1649729490187. The next prime is 1649729490191. The reversal of 1649729490190 is 910949279461.

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

It is a super-2 number, since 2×1649729490190² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649729490191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82486474500 + ... + 82486474519.

It is an arithmetic number, because the mean of its divisors is an integer number (371189135295).

Almost surely, 2^{1649729490190} is an apocalyptic number.

1649729490190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1649729490190 is a deficient number, since it is larger than the sum of its proper divisors (1319783592170).

1649729490190 is a wasteful number, since it uses less digits than its factorization.

1649729490190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164972949026.

The product of its (nonzero) digits is 8817984, while the sum is 61.

The spelling of 1649729490190 in words is "one trillion, six hundred forty-nine billion, seven hundred twenty-nine million, four hundred ninety thousand, one hundred ninety".