28601650550 has 48 divisors (see below), whose sum is σ = 58103870400. Its totient is φ = 10388320800.

The previous prime is 28601650547. The next prime is 28601650603. The reversal of 28601650550 is 5505610682.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 442181 + ... + 502719.

It is an arithmetic number, because the mean of its divisors is an integer number (1210497300).

Almost surely, 2^28601650550 is an apocalyptic number.

28601650550 is an abundant number, since it is smaller than the sum of its proper divisors (29502219850).

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

28601650550 is a wasteful number, since it uses less digits than its factorization.

28601650550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61421 (or 61416 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 38.

The spelling of 28601650550 in words is "twenty-eight billion, six hundred one million, six hundred fifty thousand, five hundred fifty".