1619113471049 has 4 divisors (see below), whose sum is σ = 1619126087040. Its totient is φ = 1619100855060.

The previous prime is 1619113471043. The next prime is 1619113471069. The reversal of 1619113471049 is 9401743119161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1619113471049 - 2¹² = 1619113466953 is a prime.

It is a super-2 number, since 2×1619113471049² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1619113470994 and 1619113471012.

It is not an unprimeable number, because it can be changed into a prime (1619113471043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6113489 + ... + 6372830.

It is an arithmetic number, because the mean of its divisors is an integer number (404781521760).

Almost surely, 2^{1619113471049} is an apocalyptic number.

It is an amenable number.

1619113471049 is a deficient number, since it is larger than the sum of its proper divisors (12615991).

1619113471049 is a wasteful number, since it uses less digits than its factorization.

1619113471049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12615990.

The product of its (nonzero) digits is 163296, while the sum is 47.

The spelling of 1619113471049 in words is "one trillion, six hundred nineteen billion, one hundred thirteen million, four hundred seventy-one thousand, forty-nine".