691102984320 has 1536 divisors, whose sum is σ = 3049604812800. Its totient is φ = 140580126720.

The previous prime is 691102984307. The next prime is 691102984349. The reversal of 691102984320 is 23489201196.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1074809919 + ... + 1074810561.

It is an arithmetic number, because the mean of its divisors is an integer number (1985419800).

Almost surely, 2^691102984320 is an apocalyptic number.

691102984320 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 691102984320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1524802406400).

691102984320 is an abundant number, since it is smaller than the sum of its proper divisors (2358501828480).

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

691102984320 is a wasteful number, since it uses less digits than its factorization.

691102984320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778 (or 763 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The spelling of 691102984320 in words is "six hundred ninety-one billion, one hundred two million, nine hundred eighty-four thousand, three hundred twenty".