11950753578 has 32 divisors (see below), whose sum is σ = 24030698112. Its totient is φ = 3962112000.

The previous prime is 11950753571. The next prime is 11950753597. The reversal of 11950753578 is 87535705911.

It is a happy number.

It is a super-2 number, since 2×11950753578² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11950753578.

It is not an unprimeable number, because it can be changed into a prime (11950753571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 842283 + ... + 856353.

It is an arithmetic number, because the mean of its divisors is an integer number (750959316).

Almost surely, 2^11950753578 is an apocalyptic number.

11950753578 is an abundant number, since it is smaller than the sum of its proper divisors (12079944534).

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

11950753578 is a wasteful number, since it uses less digits than its factorization.

11950753578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14830.

The product of its (nonzero) digits is 1323000, while the sum is 51.

The spelling of 11950753578 in words is "eleven billion, nine hundred fifty million, seven hundred fifty-three thousand, five hundred seventy-eight".