12787898011 has 8 divisors (see below), whose sum is σ = 14954618624. Its totient is φ = 10706146920.

The previous prime is 12787897987. The next prime is 12787898021. The reversal of 12787898011 is 11089878721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12787898011 - 2¹³ = 12787889819 is a prime.

It is a super-2 number, since 2×12787898011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12787898011.

It is not an unprimeable number, because it can be changed into a prime (12787898021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21242055 + ... + 21242656.

It is an arithmetic number, because the mean of its divisors is an integer number (1869327328).

Almost surely, 2^12787898011 is an apocalyptic number.

12787898011 is a deficient number, since it is larger than the sum of its proper divisors (2166720613).

12787898011 is an equidigital number, since it uses as much as digits as its factorization.

12787898011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42484761.

The product of its (nonzero) digits is 451584, while the sum is 52.

The spelling of 12787898011 in words is "twelve billion, seven hundred eighty-seven million, eight hundred ninety-eight thousand, eleven".