121477339773 has 24 divisors (see below), whose sum is σ = 187704244728. Its totient is φ = 75435282432.

The previous prime is 121477339757. The next prime is 121477339777. The reversal of 121477339773 is 377933774121.

It is a happy number.

121477339773 is a `hidden beast` number, since 12 + 1 + 477 + 3 + 3 + 97 + 73 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 17304613209 + 104172726564 = 131547^2 + 322758^2 .

It is not a de Polignac number, because 121477339773 - 2⁴ = 121477339757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121477339777) by changing a digit.

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, 4077786 + ... + 4107467.

It is an arithmetic number, because the mean of its divisors is an integer number (7821010197).

Almost surely, 2^121477339773 is an apocalyptic number.

It is an amenable number.

121477339773 is a deficient number, since it is larger than the sum of its proper divisors (66226904955).

121477339773 is a wasteful number, since it uses less digits than its factorization.

121477339773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8185373 (or 8185370 counting only the distinct ones).

The product of its digits is 4667544, while the sum is 54.

The spelling of 121477339773 in words is "one hundred twenty-one billion, four hundred seventy-seven million, three hundred thirty-nine thousand, seven hundred seventy-three".