12811011754 has 32 divisors (see below), whose sum is σ = 19990365840. Its totient is φ = 6150144000.

The previous prime is 12811011749. The next prime is 12811011767. The reversal of 12811011754 is 45711011821.

It can be written as a sum of positive squares in 8 ways, for example, as 898380729 + 11912631025 = 29973^2 + 109145^2 .

It is a super-2 number, since 2×12811011754² (a number of 21 digits) contains 22 as substring.

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, 10666354 + ... + 10667554.

Almost surely, 2^12811011754 is an apocalyptic number.

12811011754 is a deficient number, since it is larger than the sum of its proper divisors (7179354086).

12811011754 is a wasteful number, since it uses less digits than its factorization.

12811011754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106.

The product of its (nonzero) digits is 2240, while the sum is 31.

The spelling of 12811011754 in words is "twelve billion, eight hundred eleven million, eleven thousand, seven hundred fifty-four".