797821601832 has 64 divisors (see below), whose sum is σ = 2218155825600. Its totient is φ = 265702368960.

The previous prime is 797821601831. The next prime is 797821601849. The reversal of 797821601832 is 238106128797.

It is a happy number.

797821601832 is a `hidden beast` number, since 7 + 9 + 7 + 8 + 21 + 601 + 8 + 3 + 2 = 666.

It is a super-3 number, since 3×797821601832³ (a number of 37 digits) contains 333 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (797821601831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1412094 + ... + 1894637.

It is an arithmetic number, because the mean of its divisors is an integer number (34658684775).

Almost surely, 2^797821601832 is an apocalyptic number.

797821601832 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

797821601832 is an abundant number, since it is smaller than the sum of its proper divisors (1420334223768).

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

797821601832 is a wasteful number, since it uses less digits than its factorization.

797821601832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3307863 (or 3307853 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 797821601832 in words is "seven hundred ninety-seven billion, eight hundred twenty-one million, six hundred one thousand, eight hundred thirty-two".