1262116881 has 12 divisors (see below), whose sum is σ = 1902321408. Its totient is φ = 804828024.

The previous prime is 1262116837. The next prime is 1262116903. The reversal of 1262116881 is 1886112621.

1262116881 is a `hidden beast` number, since 12 + 621 + 16 + 8 + 8 + 1 = 666.

It is not a de Polignac number, because 1262116881 - 2¹⁰ = 1262115857 is a prime.

It is a super-2 number, since 2×1262116881² = 3185878042610336322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1262116811) 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, 3048385 + ... + 3048798.

It is an arithmetic number, because the mean of its divisors is an integer number (158526784).

Almost surely, 2^1262116881 is an apocalyptic number.

It is an amenable number.

1262116881 is a deficient number, since it is larger than the sum of its proper divisors (640204527).

1262116881 is a wasteful number, since it uses less digits than its factorization.

1262116881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6097212 (or 6097209 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 1262116881 is about 35526.2843680563. The cubic root of 1262116881 is about 1080.6868290630.

The spelling of 1262116881 in words is "one billion, two hundred sixty-two million, one hundred sixteen thousand, eight hundred eighty-one".