89149454578 has 8 divisors (see below), whose sum is σ = 133725820140. Its totient is φ = 44574181200.

The previous prime is 89149454573. The next prime is 89149454579. The reversal of 89149454578 is 87545494198.

It can be written as a sum of positive squares in 2 ways, for example, as 66364457769 + 22784996809 = 257613^2 + 150947^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (89149454573) 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, 23293 + ... + 422896.

Almost surely, 2^89149454578 is an apocalyptic number.

89149454578 is a deficient number, since it is larger than the sum of its proper divisors (44576365562).

89149454578 is a wasteful number, since it uses less digits than its factorization.

89149454578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546092.

The product of its digits is 58060800, while the sum is 64.

The spelling of 89149454578 in words is "eighty-nine billion, one hundred forty-nine million, four hundred fifty-four thousand, five hundred seventy-eight".