121925152563 has 32 divisors (see below), whose sum is σ = 165008543040. Its totient is φ = 80072724480.

The previous prime is 121925152561. The next prime is 121925152577. The reversal of 121925152563 is 365251529121.

It is not a de Polignac number, because 121925152563 - 2¹ = 121925152561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121925152561) 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, 63734095 + ... + 63736007.

It is an arithmetic number, because the mean of its divisors is an integer number (5156516970).

Almost surely, 2^121925152563 is an apocalyptic number.

121925152563 is a deficient number, since it is larger than the sum of its proper divisors (43083390477).

121925152563 is a wasteful number, since it uses less digits than its factorization.

121925152563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3079.

The product of its digits is 162000, while the sum is 42.

The spelling of 121925152563 in words is "one hundred twenty-one billion, nine hundred twenty-five million, one hundred fifty-two thousand, five hundred sixty-three".