69780764281320 has 1024 divisors, whose sum is σ = 261132439680000. Its totient is φ = 16499114311680.

The previous prime is 69780764281313. The next prime is 69780764281357. The reversal of 69780764281320 is 2318246708796.

69780764281320 is a `hidden beast` number, since 6 + 9 + 7 + 8 + 0 + 76 + 428 + 132 + 0 = 666.

It is a super-2 number, since 2×69780764281320² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 3830520852 + ... + 3830539068.

It is an arithmetic number, because the mean of its divisors is an integer number (255012148125).

Almost surely, 2^{69780764281320} is an apocalyptic number.

69780764281320 is a gapful number since it is divisible by the number (60) 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 69780764281320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130566219840000).

69780764281320 is an abundant number, since it is smaller than the sum of its proper divisors (191351675398680).

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

69780764281320 is a wasteful number, since it uses less digits than its factorization.

69780764281320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18483 (or 18473 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 63.

The spelling of 69780764281320 in words is "sixty-nine trillion, seven hundred eighty billion, seven hundred sixty-four million, two hundred eighty-one thousand, three hundred twenty".