121925152544 has 48 divisors (see below), whose sum is σ = 259858368000. Its totient is φ = 55978487040.

The previous prime is 121925152543. The next prime is 121925152553. The reversal of 121925152544 is 445251529121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121925152543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687794 + ... + 846705.

It is an arithmetic number, because the mean of its divisors is an integer number (5413716000).

Almost surely, 2^121925152544 is an apocalyptic number.

It is an amenable number.

121925152544 is an abundant number, since it is smaller than the sum of its proper divisors (137933215456).

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

121925152544 is a wasteful number, since it uses less digits than its factorization.

121925152544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534713 (or 1534705 counting only the distinct ones).

The product of its digits is 144000, while the sum is 41.

The spelling of 121925152544 in words is "one hundred twenty-one billion, nine hundred twenty-five million, one hundred fifty-two thousand, five hundred forty-four".