1648438924231 has 8 divisors (see below), whose sum is σ = 1904079185424. Its totient is φ = 1410429025920.

The previous prime is 1648438924189. The next prime is 1648438924267. The reversal of 1648438924231 is 1324298348461.

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 1648438924231 - 2⁷ = 1648438924103 is a prime.

It is a super-2 number, since 2×1648438924231² (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 (1648438924031) 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, 4407590520 + ... + 4407590893.

It is an arithmetic number, because the mean of its divisors is an integer number (238009898178).

Almost surely, 2^{1648438924231} is an apocalyptic number.

1648438924231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1648438924231 is a deficient number, since it is larger than the sum of its proper divisors (255640261193).

1648438924231 is a wasteful number, since it uses less digits than its factorization.

1648438924231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8815181441.

The product of its digits is 7962624, while the sum is 55.

The spelling of 1648438924231 in words is "one trillion, six hundred forty-eight billion, four hundred thirty-eight million, nine hundred twenty-four thousand, two hundred thirty-one".