1086521816 has 32 divisors (see below), whose sum is σ = 2193642000. Its totient is φ = 502634496.

The previous prime is 1086521809. The next prime is 1086521819. The reversal of 1086521816 is 6181256801.

It is a self number, because there is not a number n which added to its sum of digits gives 1086521816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1086521819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59681 + ... + 75728.

Almost surely, 2^1086521816 is an apocalyptic number.

It is an amenable number.

1086521816 is an abundant number, since it is smaller than the sum of its proper divisors (1107120184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1086521816 is a wasteful number, since it uses less digits than its factorization.

1086521816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135491 (or 135487 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 1086521816 is about 32962.4303715609. The cubic root of 1086521816 is about 1028.0466375002.

The spelling of 1086521816 in words is "one billion, eighty-six million, five hundred twenty-one thousand, eight hundred sixteen".