7855026641 has 16 divisors (see below), whose sum is σ = 9890252928. Its totient is φ = 6060192000.

The previous prime is 7855026617. The next prime is 7855026649. The reversal of 7855026641 is 1466205587.

It is a cyclic number.

It is not a de Polignac number, because 7855026641 - 2⁶ = 7855026577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7855026592 and 7855026601.

It is not an unprimeable number, because it can be changed into a prime (7855026649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 497240 + ... + 512793.

It is an arithmetic number, because the mean of its divisors is an integer number (618140808).

Almost surely, 2^7855026641 is an apocalyptic number.

It is an amenable number.

7855026641 is a deficient number, since it is larger than the sum of its proper divisors (2035226287).

7855026641 is a wasteful number, since it uses less digits than its factorization.

7855026641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010152.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 7855026641 is about 88628.5881699579. The cubic root of 7855026641 is about 1987.8451664064.

The spelling of 7855026641 in words is "seven billion, eight hundred fifty-five million, twenty-six thousand, six hundred forty-one".