780836490216 has 64 divisors (see below), whose sum is σ = 2296577923200. Its totient is φ = 244968309504.

The previous prime is 780836490209. The next prime is 780836490223. The reversal of 780836490216 is 612094638087.

780836490216 is a `hidden beast` number, since 78 + 0 + 83 + 6 + 490 + 2 + 1 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (780836490209) and next prime (780836490223).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106319380 + ... + 106326723.

It is an arithmetic number, because the mean of its divisors is an integer number (35884030050).

Almost surely, 2^780836490216 is an apocalyptic number.

It is an amenable number.

780836490216 is an abundant number, since it is smaller than the sum of its proper divisors (1515741432984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

780836490216 is a wasteful number, since it uses less digits than its factorization.

780836490216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212646135 (or 212646125 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 780836490216 in words is "seven hundred eighty billion, eight hundred thirty-six million, four hundred ninety thousand, two hundred sixteen".