121756525473 has 32 divisors (see below), whose sum is σ = 182848684032. Its totient is φ = 71425065600.

The previous prime is 121756525441. The next prime is 121756525481. The reversal of 121756525473 is 374525657121.

It is not a de Polignac number, because 121756525473 - 2⁵ = 121756525441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121756525483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 182461 + ... + 526122.

It is an arithmetic number, because the mean of its divisors is an integer number (5714021376).

Almost surely, 2^121756525473 is an apocalyptic number.

It is an amenable number.

121756525473 is a deficient number, since it is larger than the sum of its proper divisors (61092158559).

121756525473 is a wasteful number, since it uses less digits than its factorization.

121756525473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708765.

The product of its digits is 1764000, while the sum is 48.

The spelling of 121756525473 in words is "one hundred twenty-one billion, seven hundred fifty-six million, five hundred twenty-five thousand, four hundred seventy-three".