2149494574442 has 8 divisors (see below), whose sum is σ = 3224286504516. Its totient is φ = 1074732406272.

The previous prime is 2149494574433. The next prime is 2149494574459. The reversal of 2149494574442 is 2444754949412.

It can be written as a sum of positive squares in 2 ways, for example, as 2104266470881 + 45228103561 = 1450609^2 + 212669^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2149494574442² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7259033 + ... + 7549340.

Almost surely, 2^{2149494574442} is an apocalyptic number.

2149494574442 is a deficient number, since it is larger than the sum of its proper divisors (1074791930074).

2149494574442 is a wasteful number, since it uses less digits than its factorization.

2149494574442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14880952.

The product of its digits is 46448640, while the sum is 59.

The spelling of 2149494574442 in words is "two trillion, one hundred forty-nine billion, four hundred ninety-four million, five hundred seventy-four thousand, four hundred forty-two".