11129247976 has 48 divisors (see below), whose sum is σ = 26213533920. Its totient is φ = 4336068000.

The previous prime is 11129247971. The next prime is 11129247989. The reversal of 11129247976 is 67974292111.

It is a super-2 number, since 2×11129247976² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11129247971) 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, 814450 + ... + 828001.

It is an arithmetic number, because the mean of its divisors is an integer number (546115290).

Almost surely, 2^11129247976 is an apocalyptic number.

It is an amenable number.

11129247976 is an abundant number, since it is smaller than the sum of its proper divisors (15084285944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11129247976 is a wasteful number, since it uses less digits than its factorization.

11129247976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642486 (or 1642471 counting only the distinct ones).

The product of its digits is 381024, while the sum is 49.

The spelling of 11129247976 in words is "eleven billion, one hundred twenty-nine million, two hundred forty-seven thousand, nine hundred seventy-six".