7775508120040 has 32 divisors (see below), whose sum is σ = 17501068919880. Its totient is φ = 3109105354752.

The previous prime is 7775508120031. The next prime is 7775508120041. The reversal of 7775508120040 is 400218055777.

It can be written as a sum of positive squares in 4 ways, for example, as 3821845142116 + 3953662977924 = 1954954^2 + 1988382^2 .

It is not an unprimeable number, because it can be changed into a prime (7775508120041) 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, 34194429 + ... + 34421068.

Almost surely, 2^{7775508120040} is an apocalyptic number.

It is an amenable number.

7775508120040 is an abundant number, since it is smaller than the sum of its proper divisors (9725560799840).

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

7775508120040 is a wasteful number, since it uses less digits than its factorization.

7775508120040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68618341 (or 68618337 counting only the distinct ones).

The product of its (nonzero) digits is 548800, while the sum is 46.

The spelling of 7775508120040 in words is "seven trillion, seven hundred seventy-five billion, five hundred eight million, one hundred twenty thousand, forty".