7855873541 has 4 divisors (see below), whose sum is σ = 7989024000. Its totient is φ = 7722723084.

The previous prime is 7855873489. The next prime is 7855873561. The reversal of 7855873541 is 1453785587.

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 7855873541 - 2¹⁰ = 7855872517 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 (7855873561) 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, 66575141 + ... + 66575258.

It is an arithmetic number, because the mean of its divisors is an integer number (1997256000).

Almost surely, 2^7855873541 is an apocalyptic number.

It is an amenable number.

7855873541 is a deficient number, since it is larger than the sum of its proper divisors (133150459).

7855873541 is a wasteful number, since it uses less digits than its factorization.

7855873541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133150458.

The product of its digits is 4704000, while the sum is 53.

The square root of 7855873541 is about 88633.3658449232. The cubic root of 7855873541 is about 1987.9166045504.

The spelling of 7855873541 in words is "seven billion, eight hundred fifty-five million, eight hundred seventy-three thousand, five hundred forty-one".