1649017426473 has 40 divisors (see below), whose sum is σ = 2648167125120. Its totient is φ = 1019325396960.

The previous prime is 1649017426457. The next prime is 1649017426541. The reversal of 1649017426473 is 3746247109461.

1649017426473 is a `hidden beast` number, since 1 + 64 + 90 + 1 + 7 + 4 + 26 + 473 = 666.

It is not a de Polignac number, because 1649017426473 - 2⁴ = 1649017426457 is a prime.

It is a super-2 number, since 2×1649017426473² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1649017426873) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11326458 + ... + 11471123.

It is an arithmetic number, because the mean of its divisors is an integer number (66204178128).

Almost surely, 2^{1649017426473} is an apocalyptic number.

It is an amenable number.

1649017426473 is a deficient number, since it is larger than the sum of its proper divisors (999149698647).

1649017426473 is a wasteful number, since it uses less digits than its factorization.

1649017426473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22797659 (or 22797650 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 54.

The spelling of 1649017426473 in words is "one trillion, six hundred forty-nine billion, seventeen million, four hundred twenty-six thousand, four hundred seventy-three".