25989000146 has 16 divisors (see below), whose sum is σ = 39352262400. Its totient is φ = 12871646928.

The previous prime is 25989000139. The next prime is 25989000161. The reversal of 25989000146 is 64100098952.

It is a junction number, because it is equal to n+sod(n) for n = 25989000097 and 25989000106.

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, 861311 + ... + 890973.

It is an arithmetic number, because the mean of its divisors is an integer number (2459516400).

Almost surely, 2^25989000146 is an apocalyptic number.

25989000146 is a deficient number, since it is larger than the sum of its proper divisors (13363262254).

25989000146 is a wasteful number, since it uses less digits than its factorization.

With its successor (25989000147) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (33793).

25989000146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33793.

The product of its (nonzero) digits is 155520, while the sum is 44.

The spelling of 25989000146 in words is "twenty-five billion, nine hundred eighty-nine million, one hundred forty-six", and thus it is an aban number.