780085400187 has 16 divisors (see below), whose sum is σ = 1050065920512. Its totient is φ = 515103072960.

The previous prime is 780085400113. The next prime is 780085400197. The reversal of 780085400187 is 781004580087.

It is not a de Polignac number, because 780085400187 - 2¹² = 780085396091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (780085400197) 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, 2629783 + ... + 2911344.

It is an arithmetic number, because the mean of its divisors is an integer number (65629120032).

Almost surely, 2^780085400187 is an apocalyptic number.

780085400187 is a deficient number, since it is larger than the sum of its proper divisors (269980520325).

780085400187 is a wasteful number, since it uses less digits than its factorization.

780085400187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5541578.

The product of its (nonzero) digits is 501760, while the sum is 48.

The spelling of 780085400187 in words is "seven hundred eighty billion, eighty-five million, four hundred thousand, one hundred eighty-seven".