139763969664 has 128 divisors (see below), whose sum is σ = 405203878080. Its totient is φ = 42331176960.

The previous prime is 139763969633. The next prime is 139763969693. The reversal of 139763969664 is 466969367931.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9593874 + ... + 9608430.

Almost surely, 2^139763969664 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 139763969664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202601939040).

139763969664 is an abundant number, since it is smaller than the sum of its proper divisors (265439908416).

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

139763969664 is a wasteful number, since it uses less digits than its factorization.

139763969664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16858 (or 16846 counting only the distinct ones).

The product of its digits is 238085568, while the sum is 69.

The spelling of 139763969664 in words is "one hundred thirty-nine billion, seven hundred sixty-three million, nine hundred sixty-nine thousand, six hundred sixty-four".