13002011776 has 96 divisors (see below), whose sum is σ = 28205320500. Its totient is φ = 5934624768.

The previous prime is 13002011773. The next prime is 13002011819. The reversal of 13002011776 is 67711020031.

It can be written as a sum of positive squares in 6 ways, for example, as 7881178176 + 5120833600 = 88776^2 + 71560^2 .

It is not an unprimeable number, because it can be changed into a prime (13002011773) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56777230 + ... + 56777458.

Almost surely, 2^13002011776 is an apocalyptic number.

13002011776 is a gapful number since it is divisible by the number (16) 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 13002011776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14102660250).

13002011776 is an abundant number, since it is smaller than the sum of its proper divisors (15203308724).

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

13002011776 is an equidigital number, since it uses as much as digits as its factorization.

13002011776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 393 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 28.

The spelling of 13002011776 in words is "thirteen billion, two million, eleven thousand, seven hundred seventy-six".