11279547970 has 32 divisors (see below), whose sum is σ = 21040009200. Its totient is φ = 4348624896.

The previous prime is 11279547959. The next prime is 11279548009. The reversal of 11279547970 is 7974597211.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 9457368001 + 1822179969 = 97249^2 + 42687^2 .

It is a super-2 number, since 2×11279547970² (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, 133626 + ... + 201034.

Almost surely, 2^11279547970 is an apocalyptic number.

11279547970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11279547970 is a deficient number, since it is larger than the sum of its proper divisors (9760461230).

11279547970 is a wasteful number, since it uses less digits than its factorization.

11279547970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68022.

The product of its (nonzero) digits is 1111320, while the sum is 52.

The spelling of 11279547970 in words is "eleven billion, two hundred seventy-nine million, five hundred forty-seven thousand, nine hundred seventy".