4121238923550 has 96 divisors (see below), whose sum is σ = 12978631814400. Its totient is φ = 941997466080.

The previous prime is 4121238923531. The next prime is 4121238923563. The reversal of 4121238923550 is 553298321214.

4121238923550 is a `hidden beast` number, since 4 + 1 + 2 + 1 + 2 + 3 + 8 + 92 + 3 + 550 = 666.

It is a super-2 number, since 2×4121238923550² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 4121238923496 and 4121238923505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 218045520 + ... + 218064419.

It is an arithmetic number, because the mean of its divisors is an integer number (135194081400).

Almost surely, 2^{4121238923550} is an apocalyptic number.

4121238923550 is an abundant number, since it is smaller than the sum of its proper divisors (8857392890850).

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

4121238923550 is a wasteful number, since it uses less digits than its factorization.

4121238923550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436109967 (or 436109956 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 4121238923550 in words is "four trillion, one hundred twenty-one billion, two hundred thirty-eight million, nine hundred twenty-three thousand, five hundred fifty".