1649654234239 has 8 divisors (see below), whose sum is σ = 1905482965968. Its totient is φ = 1411468863360.

The previous prime is 1649654234233. The next prime is 1649654234287. The reversal of 1649654234239 is 9324324569461.

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 1649654234239 - 2¹³ = 1649654226047 is a prime.

It is a super-2 number, since 2×1649654234239² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1649654234233) 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, 4410840012 + ... + 4410840385.

It is an arithmetic number, because the mean of its divisors is an integer number (238185370746).

Almost surely, 2^{1649654234239} is an apocalyptic number.

1649654234239 is a deficient number, since it is larger than the sum of its proper divisors (255828731729).

1649654234239 is a wasteful number, since it uses less digits than its factorization.

1649654234239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8821680425.

The product of its digits is 33592320, while the sum is 58.

The spelling of 1649654234239 in words is "one trillion, six hundred forty-nine billion, six hundred fifty-four million, two hundred thirty-four thousand, two hundred thirty-nine".