121762041650 has 48 divisors (see below), whose sum is σ = 229293136800. Its totient is φ = 48106713680.

The previous prime is 121762041619. The next prime is 121762041703. The reversal of 121762041650 is 56140267121.

It is a self number, because there is not a number n which added to its sum of digits gives 121762041650.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28587221 + ... + 28591479.

It is an arithmetic number, because the mean of its divisors is an integer number (4776940350).

Almost surely, 2^121762041650 is an apocalyptic number.

121762041650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121762041650 is a deficient number, since it is larger than the sum of its proper divisors (107531095150).

121762041650 is an frugal number, since it uses more digits than its factorization.

121762041650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520 (or 4349 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 121762041650 in words is "one hundred twenty-one billion, seven hundred sixty-two million, forty-one thousand, six hundred fifty".