69981727727616 has 112 divisors (see below), whose sum is σ = 187300272693600. Its totient is φ = 23240522006528.

The previous prime is 69981727727563. The next prime is 69981727727621. The reversal of 69981727727616 is 61672772718996.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1318075 + ... + 11903813.

Almost surely, 2^{69981727727616} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69981727727616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93650136346800).

69981727727616 is an abundant number, since it is smaller than the sum of its proper divisors (117318544965984).

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

69981727727616 is a wasteful number, since it uses less digits than its factorization.

69981727727616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10586037 (or 10586013 counting only the distinct ones).

The product of its digits is 1344252672, while the sum is 78.

The spelling of 69981727727616 in words is "sixty-nine trillion, nine hundred eighty-one billion, seven hundred twenty-seven million, seven hundred twenty-seven thousand, six hundred sixteen".