1924454239009 has 9 divisors (see below), whose sum is σ = 2031100020723. Its totient is φ = 1823142203352.

The previous prime is 1924454239007. The next prime is 1924454239013. The reversal of 1924454239009 is 9009324544291.

The square root of 1924454239009 is 1387247.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1540515380625 + 383938858384 = 1241175^2 + 619628^2 .

It is not a de Polignac number, because 1924454239009 - 2¹ = 1924454239007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1924454239007) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 26321187 + ... + 26394199.

Almost surely, 2^{1924454239009} is an apocalyptic number.

1924454239009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1924454239009 is the 1387247-th square number.

1924454239009 is the 693624-th centered octagonal number.

It is an amenable number.

1924454239009 is a deficient number, since it is larger than the sum of its proper divisors (106645781714).

1924454239009 is an frugal number, since it uses more digits than its factorization.

1924454239009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146064 (or 73032 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 1924454239009 in words is "one trillion, nine hundred twenty-four billion, four hundred fifty-four million, two hundred thirty-nine thousand, nine".