9550005459978 has 32 divisors (see below), whose sum is σ = 19247580677952. Its totient is φ = 3158744659200.

The previous prime is 9550005459971. The next prime is 9550005459997. The reversal of 9550005459978 is 8799545000559.

It is a super-2 number, since 2×9550005459978² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9550005459971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8087868 + ... + 9193128.

It is an arithmetic number, because the mean of its divisors is an integer number (601486896186).

Almost surely, 2^{9550005459978} is an apocalyptic number.

9550005459978 is an abundant number, since it is smaller than the sum of its proper divisors (9697575217974).

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

9550005459978 is a wasteful number, since it uses less digits than its factorization.

9550005459978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116390.

The product of its (nonzero) digits is 102060000, while the sum is 66.

The spelling of 9550005459978 in words is "nine trillion, five hundred fifty billion, five million, four hundred fifty-nine thousand, nine hundred seventy-eight".