7963504641 has 6 divisors (see below), whose sum is σ = 11502840050. Its totient is φ = 5309003088.

The previous prime is 7963504631. The next prime is 7963504649. The reversal of 7963504641 is 1464053697.

7963504641 is a `hidden beast` number, since 7 + 9 + 635 + 0 + 4 + 6 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7589894400 + 373610241 = 87120^2 + 19329^2 .

It is not a de Polignac number, because 7963504641 - 2²³ = 7955116033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7963504649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 442416916 + ... + 442416933.

Almost surely, 2^7963504641 is an apocalyptic number.

It is an amenable number.

7963504641 is a deficient number, since it is larger than the sum of its proper divisors (3539335409).

7963504641 is a wasteful number, since it uses less digits than its factorization.

7963504641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884833855 (or 884833852 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 7963504641 is about 89238.4706334661. The cubic root of 7963504641 is about 1996.9540836350.

The spelling of 7963504641 in words is "seven billion, nine hundred sixty-three million, five hundred four thousand, six hundred forty-one".