7964061408 has 36 divisors (see below), whose sum is σ = 22647800448. Its totient is φ = 2654687040.

The previous prime is 7964061373. The next prime is 7964061449. The reversal of 7964061408 is 8041604697.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×7964061408² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 13826208 + ... + 13826783.

It is an arithmetic number, because the mean of its divisors is an integer number (629105568).

Almost surely, 2^7964061408 is an apocalyptic number.

It is an amenable number.

7964061408 is an abundant number, since it is smaller than the sum of its proper divisors (14683739040).

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

7964061408 is a wasteful number, since it uses less digits than its factorization.

7964061408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27653007 (or 27652996 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 7964061408 is about 89241.5901247843. The cubic root of 7964061408 is about 1997.0006214461. Note that the first 3 decimals are identical.

The spelling of 7964061408 in words is "seven billion, nine hundred sixty-four million, sixty-one thousand, four hundred eight".