121546012445725 has 48 divisors (see below), whose sum is σ = 181331680478080. Its totient is φ = 78951406060800.

The previous prime is 121546012445707. The next prime is 121546012445729. The reversal of 121546012445725 is 527544210645121.

It is not a de Polignac number, because 121546012445725 - 2¹⁹ = 121546011921437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121546012445729) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31916479 + ... + 35521171.

Almost surely, 2^{121546012445725} is an apocalyptic number.

It is an amenable number.

121546012445725 is a deficient number, since it is larger than the sum of its proper divisors (59785668032355).

121546012445725 is a wasteful number, since it uses less digits than its factorization.

121546012445725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3614870 (or 3614865 counting only the distinct ones).

The product of its (nonzero) digits is 2688000, while the sum is 49.

The spelling of 121546012445725 in words is "one hundred twenty-one trillion, five hundred forty-six billion, twelve million, four hundred forty-five thousand, seven hundred twenty-five".