7912241505 has 48 divisors (see below), whose sum is σ = 16097412864. Its totient is φ = 3519262080.

The previous prime is 7912241489. The next prime is 7912241509. The reversal of 7912241505 is 5051422197.

7912241505 is a `hidden beast` number, since 7 + 91 + 22 + 41 + 505 = 666.

It is not a de Polignac number, because 7912241505 - 2⁴ = 7912241489 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7912241505.

It is not an unprimeable number, because it can be changed into a prime (7912241509) 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, 327781 + ... + 351090.

It is an arithmetic number, because the mean of its divisors is an integer number (335362768).

Almost surely, 2^7912241505 is an apocalyptic number.

It is an amenable number.

7912241505 is an abundant number, since it is smaller than the sum of its proper divisors (8185171359).

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

7912241505 is a wasteful number, since it uses less digits than its factorization.

7912241505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678926 (or 678923 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 7912241505 is about 88950.7813625041. The cubic root of 7912241505 is about 1992.6598864050.

The spelling of 7912241505 in words is "seven billion, nine hundred twelve million, two hundred forty-one thousand, five hundred five".