918523708525 has 12 divisors (see below), whose sum is σ = 1139052117204. Its totient is φ = 734765600000.

The previous prime is 918523708481. The next prime is 918523708567. The reversal of 918523708525 is 525807325819.

It can be written as a sum of positive squares in 6 ways, for example, as 145385114436 + 773138594089 = 381294^2 + 879283^2 .

It is not a de Polignac number, because 918523708525 - 2⁷ = 918523708397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 981226 + ... + 1673275.

It is an arithmetic number, because the mean of its divisors is an integer number (94921009767).

Almost surely, 2^918523708525 is an apocalyptic number.

It is an amenable number.

918523708525 is a deficient number, since it is larger than the sum of its proper divisors (220528408679).

918523708525 is a wasteful number, since it uses less digits than its factorization.

918523708525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668352 (or 2668347 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 55.

The spelling of 918523708525 in words is "nine hundred eighteen billion, five hundred twenty-three million, seven hundred eight thousand, five hundred twenty-five".