23219802228249 has 27 divisors (see below), whose sum is σ = 36866219462527. Its totient is φ = 14072511037200.

The previous prime is 23219802228241. The next prime is 23219802228281. The reversal of 23219802228249 is 94282220891232.

The square root of 23219802228249 is 4818693.

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

23219802228249 is a `hidden beast` number, since 2 + 321 + 98 + 0 + 2 + 228 + 2 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 481209978249 + 22738592250000 = 693693^2 + 4768500^2 .

It is not a de Polignac number, because 23219802228249 - 2³ = 23219802228241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23219802228195 and 23219802228204.

It is not an unprimeable number, because it can be changed into a prime (23219802228241) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 158943859 + ... + 159089879.

Almost surely, 2^{23219802228249} is an apocalyptic number.

23219802228249 is the 4818693-rd square number.

23219802228249 is the 2409347-th centered octagonal number.

It is an amenable number.

23219802228249 is a deficient number, since it is larger than the sum of its proper divisors (13646417234278).

23219802228249 is an frugal number, since it uses more digits than its factorization.

23219802228249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292070 (or 146035 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 23219802228249 in words is "twenty-three trillion, two hundred nineteen billion, eight hundred two million, two hundred twenty-eight thousand, two hundred forty-nine".