11745769550 has 12 divisors (see below), whose sum is σ = 21847131456. Its totient is φ = 4698307800.

The previous prime is 11745769549. The next prime is 11745769561. The reversal of 11745769550 is 5596754711.

It is a Harshad number since it is a multiple of its sum of digits (50), and also a Moran number because the ratio is a prime number: 234915391 = 11745769550 / (1 + 1 + 7 + 4 + 5 + 7 + 6 + 9 + 5 + 5 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117457646 + ... + 117457745.

It is an arithmetic number, because the mean of its divisors is an integer number (1820594288).

Almost surely, 2^11745769550 is an apocalyptic number.

11745769550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11745769550 is a deficient number, since it is larger than the sum of its proper divisors (10101361906).

11745769550 is a wasteful number, since it uses less digits than its factorization.

11745769550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234915403 (or 234915398 counting only the distinct ones).

The product of its (nonzero) digits is 1323000, while the sum is 50.

The spelling of 11745769550 in words is "eleven billion, seven hundred forty-five million, seven hundred sixty-nine thousand, five hundred fifty".