120425640777 has 48 divisors (see below), whose sum is σ = 189475545168. Its totient is φ = 73261094400.

The previous prime is 120425640763. The next prime is 120425640823. The reversal of 120425640777 is 777046524021.

120425640777 is a `hidden beast` number, since 12 + 0 + 4 + 2 + 564 + 0 + 7 + 77 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 54576435456 + 65849205321 = 233616^2 + 256611^2 .

It is not a de Polignac number, because 120425640777 - 2⁸ = 120425640521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120425440777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7992583 + ... + 8007635.

It is an arithmetic number, because the mean of its divisors is an integer number (3947407191).

Almost surely, 2^120425640777 is an apocalyptic number.

It is an amenable number.

120425640777 is a deficient number, since it is larger than the sum of its proper divisors (69049904391).

120425640777 is a wasteful number, since it uses less digits than its factorization.

120425640777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15850 (or 15847 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 45.

The spelling of 120425640777 in words is "one hundred twenty billion, four hundred twenty-five million, six hundred forty thousand, seven hundred seventy-seven".