90432870148 has 24 divisors (see below), whose sum is σ = 161126187264. Its totient is φ = 44399344800.

The previous prime is 90432870139. The next prime is 90432870173. The reversal of 90432870148 is 84107823409.

It is a junction number, because it is equal to n+sod(n) for n = 90432870098 and 90432870107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172468 + ... + 458923.

It is an arithmetic number, because the mean of its divisors is an integer number (6713591136).

Almost surely, 2^90432870148 is an apocalyptic number.

It is an amenable number.

90432870148 is a deficient number, since it is larger than the sum of its proper divisors (70693317116).

90432870148 is a wasteful number, since it uses less digits than its factorization.

90432870148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632043 (or 632041 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 90432870148 in words is "ninety billion, four hundred thirty-two million, eight hundred seventy thousand, one hundred forty-eight".