691014380832 has 48 divisors (see below), whose sum is σ = 2015458613280. Its totient is φ = 230338126656.

The previous prime is 691014380821. The next prime is 691014380857. The reversal of 691014380832 is 238083410196.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399891718 + ... + 399893445.

It is an arithmetic number, because the mean of its divisors is an integer number (41988721110).

Almost surely, 2^691014380832 is an apocalyptic number.

It is an amenable number.

691014380832 is an abundant number, since it is smaller than the sum of its proper divisors (1324444232448).

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

691014380832 is a wasteful number, since it uses less digits than its factorization.

691014380832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799785182 (or 799785168 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 691014380832 in words is "six hundred ninety-one billion, fourteen million, three hundred eighty thousand, eight hundred thirty-two".