9190919145550 has 48 divisors (see below), whose sum is σ = 17569482748992. Its totient is φ = 3574491638400.

The previous prime is 9190919145523. The next prime is 9190919145553. The reversal of 9190919145550 is 555419190919.

9190919145550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9190919145553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 886920 + ... + 4378180.

It is an arithmetic number, because the mean of its divisors is an integer number (366030890604).

Almost surely, 2^{9190919145550} is an apocalyptic number.

9190919145550 is a deficient number, since it is larger than the sum of its proper divisors (8378563603442).

9190919145550 is a wasteful number, since it uses less digits than its factorization.

9190919145550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3492733 (or 3492728 counting only the distinct ones).

The product of its (nonzero) digits is 3280500, while the sum is 58.

The spelling of 9190919145550 in words is "nine trillion, one hundred ninety billion, nine hundred nineteen million, one hundred forty-five thousand, five hundred fifty".