949202243138 has 54 divisors (see below), whose sum is σ = 1497009996441. Its totient is φ = 451375797600.

The previous prime is 949202243131. The next prime is 949202243147. The reversal of 949202243138 is 831342202949.

It can be written as a sum of positive squares in 2 ways, for example, as 550173777169 + 399028465969 = 741737^2 + 631687^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=688913.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 949202243092 and 949202243101.

It is not an unprimeable number, because it can be changed into a prime (949202243131) 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, 3032594870 + ... + 3032595182.

Almost surely, 2^949202243138 is an apocalyptic number.

949202243138 is a deficient number, since it is larger than the sum of its proper divisors (547807753303).

949202243138 is an frugal number, since it uses more digits than its factorization.

949202243138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832 (or 417 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 949202243138 in words is "nine hundred forty-nine billion, two hundred two million, two hundred forty-three thousand, one hundred thirty-eight".