121762043644 has 6 divisors (see below), whose sum is σ = 213083576384. Its totient is φ = 60881021820.

The previous prime is 121762043603. The next prime is 121762043651. The reversal of 121762043644 is 446340267121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121762043597 and 121762043606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15220255452 + ... + 15220255459.

Almost surely, 2^121762043644 is an apocalyptic number.

It is an amenable number.

121762043644 is a deficient number, since it is larger than the sum of its proper divisors (91321532740).

121762043644 is a wasteful number, since it uses less digits than its factorization.

121762043644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30440510915 (or 30440510913 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The spelling of 121762043644 in words is "one hundred twenty-one billion, seven hundred sixty-two million, forty-three thousand, six hundred forty-four".