7935143641 has 4 divisors (see below), whose sum is σ = 8352782800. Its totient is φ = 7517504484.

The previous prime is 7935143471. The next prime is 7935143651. The reversal of 7935143641 is 1463415397.

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.

It is a cyclic number.

It is not a de Polignac number, because 7935143641 - 2¹¹ = 7935141593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7935143651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208819551 + ... + 208819588.

It is an arithmetic number, because the mean of its divisors is an integer number (2088195700).

Almost surely, 2^7935143641 is an apocalyptic number.

It is an amenable number.

7935143641 is a deficient number, since it is larger than the sum of its proper divisors (417639159).

7935143641 is a wasteful number, since it uses less digits than its factorization.

7935143641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417639158.

The product of its digits is 272160, while the sum is 43.

The square root of 7935143641 is about 89079.4232188332. The cubic root of 7935143641 is about 1994.5806319051.

The spelling of 7935143641 in words is "seven billion, nine hundred thirty-five million, one hundred forty-three thousand, six hundred forty-one".