49089200819 has 4 divisors (see below), whose sum is σ = 49092217560. Its totient is φ = 49086184080.

The previous prime is 49089200779. The next prime is 49089200837. The reversal of 49089200819 is 91800298094.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49089200819 is a prime.

It is a super-2 number, since 2×49089200819² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49089206819) 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, 1483829 + ... + 1516550.

It is an arithmetic number, because the mean of its divisors is an integer number (12273054390).

Almost surely, 2^49089200819 is an apocalyptic number.

49089200819 is a deficient number, since it is larger than the sum of its proper divisors (3016741).

49089200819 is a wasteful number, since it uses less digits than its factorization.

49089200819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3016740.

The product of its (nonzero) digits is 373248, while the sum is 50.

The spelling of 49089200819 in words is "forty-nine billion, eighty-nine million, two hundred thousand, eight hundred nineteen".