880135211781 has 12 divisors (see below), whose sum is σ = 1452921619552. Its totient is φ = 502934406696.

The previous prime is 880135211779. The next prime is 880135211831. The reversal of 880135211781 is 187112531088.

It is not a de Polignac number, because 880135211781 - 2¹ = 880135211779 is a prime.

It is a super-2 number, since 2×880135211781² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (880135211771) 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, 6985200031 + ... + 6985200156.

Almost surely, 2^880135211781 is an apocalyptic number.

It is an amenable number.

880135211781 is a deficient number, since it is larger than the sum of its proper divisors (572786407771).

880135211781 is a wasteful number, since it uses less digits than its factorization.

880135211781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13970400200 (or 13970400197 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 45.

The spelling of 880135211781 in words is "eight hundred eighty billion, one hundred thirty-five million, two hundred eleven thousand, seven hundred eighty-one".