25494120077121 has 32 divisors (see below), whose sum is σ = 37817570592000. Its totient is φ = 16974260964864.

The previous prime is 25494120077071. The next prime is 25494120077131. The reversal of 25494120077121 is 12177002149452.

25494120077121 is a `hidden beast` number, since 2 + 5 + 49 + 412 + 0 + 0 + 77 + 121 = 666.

It is not a de Polignac number, because 25494120077121 - 2⁶ = 25494120077057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25494120077131) 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, 123631420 + ... + 123837458.

It is an arithmetic number, because the mean of its divisors is an integer number (1181799081000).

Almost surely, 2^{25494120077121} is an apocalyptic number.

It is an amenable number.

25494120077121 is a deficient number, since it is larger than the sum of its proper divisors (12323450514879).

25494120077121 is a wasteful number, since it uses less digits than its factorization.

25494120077121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211910 (or 211904 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The spelling of 25494120077121 in words is "twenty-five trillion, four hundred ninety-four billion, one hundred twenty million, seventy-seven thousand, one hundred twenty-one".