780416240887 has 4 divisors (see below), whose sum is σ = 793209949816. Its totient is φ = 767622531960.

The previous prime is 780416240873. The next prime is 780416240897. The reversal of 780416240887 is 788042614087.

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

It is a cyclic number.

It is not a de Polignac number, because 780416240887 - 2¹⁵ = 780416208119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780416240897) 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, 6396854373 + ... + 6396854494.

It is an arithmetic number, because the mean of its divisors is an integer number (198302487454).

Almost surely, 2^780416240887 is an apocalyptic number.

780416240887 is a deficient number, since it is larger than the sum of its proper divisors (12793708929).

780416240887 is a wasteful number, since it uses less digits than its factorization.

780416240887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12793708928.

The product of its (nonzero) digits is 4816896, while the sum is 55.

The spelling of 780416240887 in words is "seven hundred eighty billion, four hundred sixteen million, two hundred forty thousand, eight hundred eighty-seven".