89693695540 has 12 divisors (see below), whose sum is σ = 188356760676. Its totient is φ = 35877478208.

The previous prime is 89693695513. The next prime is 89693695543. The reversal of 89693695540 is 4559639698.

It can be written as a sum of positive squares in 2 ways, for example, as 62351088804 + 27342606736 = 249702^2 + 165356^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89693695543) 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, 2242342369 + ... + 2242342408.

It is an arithmetic number, because the mean of its divisors is an integer number (15696396723).

Almost surely, 2^89693695540 is an apocalyptic number.

It is an amenable number.

89693695540 is an abundant number, since it is smaller than the sum of its proper divisors (98663065136).

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

89693695540 is a wasteful number, since it uses less digits than its factorization.

89693695540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4484684786 (or 4484684784 counting only the distinct ones).

The product of its (nonzero) digits is 62985600, while the sum is 64.

The spelling of 89693695540 in words is "eighty-nine billion, six hundred ninety-three million, six hundred ninety-five thousand, five hundred forty".