7908136461 has 8 divisors (see below), whose sum is σ = 11715757760. Its totient is φ = 5272090956.

The previous prime is 7908136451. The next prime is 7908136507. The reversal of 7908136461 is 1646318097.

It is a happy number.

7908136461 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-7908136461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7908136451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146446945 + ... + 146446998.

It is an arithmetic number, because the mean of its divisors is an integer number (1464469720).

Almost surely, 2^7908136461 is an apocalyptic number.

It is an amenable number.

7908136461 is a deficient number, since it is larger than the sum of its proper divisors (3807621299).

7908136461 is a wasteful number, since it uses less digits than its factorization.

7908136461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292893952 (or 292893946 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 7908136461 is about 88927.7035630630. The cubic root of 7908136461 is about 1992.3152149420.

The spelling of 7908136461 in words is "seven billion, nine hundred eight million, one hundred thirty-six thousand, four hundred sixty-one".