782187900049 has 16 divisors (see below), whose sum is σ = 796140475200. Its totient is φ = 768350338560.

The previous prime is 782187900007. The next prime is 782187900107. The reversal of 782187900049 is 940009781287.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 782187900049 - 2¹⁷ = 782187768977 is a prime.

It is a super-2 number, since 2×782187900049² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (782187900349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18349849 + ... + 18392425.

It is an arithmetic number, because the mean of its divisors is an integer number (49758779700).

Almost surely, 2^782187900049 is an apocalyptic number.

It is an amenable number.

782187900049 is a deficient number, since it is larger than the sum of its proper divisors (13952575151).

782187900049 is a wasteful number, since it uses less digits than its factorization.

782187900049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43920.

The product of its (nonzero) digits is 2032128, while the sum is 55.

The spelling of 782187900049 in words is "seven hundred eighty-two billion, one hundred eighty-seven million, nine hundred thousand, forty-nine".