1126807881 has 32 divisors (see below), whose sum is σ = 1592524800. Its totient is φ = 707281344.

The previous prime is 1126807873. The next prime is 1126807937. The reversal of 1126807881 is 1887086211.

It is not a de Polignac number, because 1126807881 - 2³ = 1126807873 is a prime.

It is a super-2 number, since 2×1126807881² = 2539392001367420322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1126807681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1305256 + ... + 1306118.

It is an arithmetic number, because the mean of its divisors is an integer number (49766400).

Almost surely, 2^1126807881 is an apocalyptic number.

It is an amenable number.

1126807881 is a deficient number, since it is larger than the sum of its proper divisors (465716919).

1126807881 is a wasteful number, since it uses less digits than its factorization.

1126807881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165.

The product of its (nonzero) digits is 43008, while the sum is 42.

The square root of 1126807881 is about 33567.9591426110. The cubic root of 1126807881 is about 1040.5987309947.

The spelling of 1126807881 in words is "one billion, one hundred twenty-six million, eight hundred seven thousand, eight hundred eighty-one".