119449906261 has 18 divisors (see below), whose sum is σ = 140055583158. Its totient is φ = 101578775760.

The previous prime is 119449906259. The next prime is 119449906267. The reversal of 119449906261 is 162609944911.

It can be written as a sum of positive squares in only one way, i.e., 117145330225 + 2304576036 = 342265^2 + 48006^2 .

It is not a de Polignac number, because 119449906261 - 2¹ = 119449906259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 119449906199 and 119449906208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119449906267) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 714751 + ... + 865891.

It is an arithmetic number, because the mean of its divisors is an integer number (7780865731).

Almost surely, 2^119449906261 is an apocalyptic number.

It is an amenable number.

119449906261 is a deficient number, since it is larger than the sum of its proper divisors (20605676897).

119449906261 is an equidigital number, since it uses as much as digits as its factorization.

119449906261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151409 (or 151275 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 52.

The spelling of 119449906261 in words is "one hundred nineteen billion, four hundred forty-nine million, nine hundred six thousand, two hundred sixty-one".