11032209978 has 16 divisors (see below), whose sum is σ = 22104763680. Its totient is φ = 3670679376.

The previous prime is 11032209949. The next prime is 11032209997. The reversal of 11032209978 is 87990223011.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1677433 + ... + 1683996.

It is an arithmetic number, because the mean of its divisors is an integer number (1381547730).

Almost surely, 2^11032209978 is an apocalyptic number.

11032209978 is an abundant number, since it is smaller than the sum of its proper divisors (11072553702).

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

11032209978 is a wasteful number, since it uses less digits than its factorization.

11032209978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361981.

The product of its (nonzero) digits is 54432, while the sum is 42.

The spelling of 11032209978 in words is "eleven billion, thirty-two million, two hundred nine thousand, nine hundred seventy-eight".