7945602901 has 4 divisors (see below), whose sum is σ = 8201912704. Its totient is φ = 7689293100.

The previous prime is 7945602887. The next prime is 7945602941. The reversal of 7945602901 is 1092065497.

It is a happy number.

7945602901 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1092065497 = 137 ⋅7971281.

It is a cyclic number.

It is not a de Polignac number, because 7945602901 - 2²¹ = 7943505749 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 (7945602941) 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 3 ways as a sum of consecutive naturals, for example, 128154855 + ... + 128154916.

It is an arithmetic number, because the mean of its divisors is an integer number (2050478176).

Almost surely, 2^7945602901 is an apocalyptic number.

It is an amenable number.

7945602901 is a deficient number, since it is larger than the sum of its proper divisors (256309803).

7945602901 is a wasteful number, since it uses less digits than its factorization.

7945602901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256309802.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 7945602901 is about 89138.1113834032. Note that the first 3 decimals coincide. The cubic root of 7945602901 is about 1995.4565949676.

The spelling of 7945602901 in words is "seven billion, nine hundred forty-five million, six hundred two thousand, nine hundred one".