780647196672 has 576 divisors, whose sum is σ = 2788648611840. Its totient is φ = 213322678272.

The previous prime is 780647196653. The next prime is 780647196673. The reversal of 780647196672 is 276691746087.

780647196672 is a `hidden beast` number, since 7 + 8 + 0 + 6 + 471 + 96 + 6 + 72 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (780647196673) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80119033 + ... + 80128775.

It is an arithmetic number, because the mean of its divisors is an integer number (4841403840).

Almost surely, 2^780647196672 is an apocalyptic number.

780647196672 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 780647196672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1394324305920).

780647196672 is an abundant number, since it is smaller than the sum of its proper divisors (2008001415168).

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

780647196672 is an equidigital number, since it uses as much as digits as its factorization.

780647196672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9810 (or 9778 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 63.

The spelling of 780647196672 in words is "seven hundred eighty billion, six hundred forty-seven million, one hundred ninety-six thousand, six hundred seventy-two".