121761304650 has 48 divisors (see below), whose sum is σ = 335520043200. Its totient is φ = 32469680880.

The previous prime is 121761304631. The next prime is 121761304673. The reversal of 121761304650 is 56403167121.

121761304650 is a `hidden beast` number, since 12 + 176 + 13 + 0 + 465 + 0 = 666.

It is a super-2 number, since 2×121761304650² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45095430 + ... + 45098129.

It is an arithmetic number, because the mean of its divisors is an integer number (6990000900).

Almost surely, 2^121761304650 is an apocalyptic number.

121761304650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121761304650 is an abundant number, since it is smaller than the sum of its proper divisors (213758738550).

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

121761304650 is a wasteful number, since it uses less digits than its factorization.

121761304650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90193580 (or 90193569 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 121761304650 in words is "one hundred twenty-one billion, seven hundred sixty-one million, three hundred four thousand, six hundred fifty".